Contains Spoilers- Need emotional support from like minded individuals

On top of that different paths can still result in the same location because basic physics says there is only so many ways to achieve the same thing. If physics say that you can't reach the speed of light because it requires an infinitely scaling magnitude of energy the closer you get to the speed of light then you need some way to alter the physics of reality to allow FTL travel.  In the Mass Effect universe there is no subspace or slip-space or warp. No alternate dimension that uses different physics in that reality to allow the bypassing of the limits of light speed travel in our dimension.  The only way to alter the physics of the world in the Mass Effect universe is though the manipulation of Dark Energy. Which is exactly what Element Zero does. Passing an electrical charge though it will create a dark energy fields that will manipulate the mass of the object within the field.  Which is exactly how the Reaper created FLT drives work.

The only difference is that a species might develop this technology  100 years after becoming true space faring race.  Or it could be 1,000 years later depending on their cosmological luck to either develop in a system with deposits of ezo to be found. Or when sending colony ships into the void of space they pick a system with ezo in it to be found.

In fact your misused quote from Legion actually proves the Catlyst's point about synthetics killing organics. Because science is not a video game skill tree it would be entirely possible to develop the Geth before the invention of FTL travel or even space travel. Which means without the Reapers and theire Relays and without FTL speed, the Quarians being sent out into the void of space with only sub light drives or being trapped on their home planet with no way to mass evacuate the Qurian race would die.  Either quickly at the point of a Geth rifle or slowly in the void of space as fuel, water, food and repairs slowly causes ship failure and death.

To quote Dr. Strange

14 million possible paths races could take to stay alive long enough to naturally reach the technological development which would result in the same effect as synthesis.  But only 1 out of 14 million actually allows the galaxy to reach that path. And deviations from that path results in death and destruction. 

The Conscription Act of 1917 was passed in June. Conscripts were court-martialed by the Army if they refused to wear uniforms, bear arms, perform basic duties, or submit to military authority. Convicted objectors were often given long sentences of 20 years in Fort Leavenworth.[20] In 1918 Secretary of War Newton D. Baker created the Board of Inquiry to question the conscientious objectors' sincerity.[21] Military tribunals tried men found by the Board to be insincere for a variety of offenses, sentencing 17 to death, 142 to life imprisonment, and 345 to penal labor camps.[21] Many of these sentences were commuted after the war's end.

In 1917, a number of radicals and anarchists, including Emma Goldman, tried to challenge the new draft law in federal court, arguing that it was a direct violation of the Thirteenth Amendment's prohibition against slavery and involuntary servitude. The Supreme Court unanimously upheld the constitutionality of the draft act in the Selective Draft Law Cases on January 7, 1918. The decision said the Constitution gave Congress the power to declare war and to raise and support armies. The Court, relying partly on Vattel's The Law of Nations, emphasized the principle of the reciprocal rights and duties of citizens:[22] 

Opposition

Draft evasion accounted for about 4% of the total inducted. About 373,000 alleged evaders were investigated with just over 16,000 being imprisoned.[35] Opposition was nonetheless encountered, especially in the northern cities where some African-Americans protested the system. The Nation of Islam was at the forefront, with many black Muslims jailed for refusing the draft, and their leader Elijah Muhammad was sentenced to federal prison for 5 years for inciting draft resistance. Organized draft resistance also developed in the Japanese American internment camps, where groups like the Heart Mountain Fair Play Committee refused to serve unless they and their families were released. 300 Nisei men from eight of the ten War Relocation Authority camps were arrested and stood trial for felony draft evasion; most were sentenced to federal prison.[36] American Communists also opposed the war by forming the "American Peace Committee", which tried to organize a coalition of anti-war groups. This lasted until Germany attacked the Soviet Union in June 1941, whereupon they changed the committee's name to the "American People's Committee" and supported aid to Britain, the draft and other preparations for war.[37] 

Post-1980 draft registration

On July 2, 1980, President Jimmy Carter issued Presidential Proclamation 4771 and re-instated the requirement that young men register with the Selective Service System.[84] At that time it was required that all males, born on or after January 1, 1960, register with the Selective Service System. Those who were now in this category were male U.S. citizens and male immigrant non-citizens between the ages of 18 and 25; they were required to register within 30 days of their 18th birthday even if they were not actually eligible to join the military.

The Selective Service System, still essentially what it was in 1980, describes its mission as "to serve the emergency manpower needs of the Military by conscripting untrained manpower, or personnel with professional health care skills, if directed by Congress and the President in a national crisis".[85] Registration forms are available either online, or at any U.S. Post Office or DMV.

The Selective Service registration form states that failure to register is a felony punishable by up to five years imprisonment or a $250,000 fine.[86] In practice, though, no one has been prosecuted for failure to comply with draft registration since 1986,[87] in part because prosecutions of draft resisters proved counter-productive for the government during the Vietnam War, and in part because of the difficulty of proving that noncompliance with the law was "knowing and wilful". In interviews published in U.S. News & World Report in May 2016, current and former Selective Service System officials said that in 1988, the Department of Justice and Selective Service agreed to suspend any further prosecutions of nonregistrants.[88] Many men do not register at all, register late, or change addresses without notifying the Selective Service System.[89]

Even in the absence of prosecution, however, failure to register may lead to other consequences. Registration is a requirement for employment by the federal government and some state governments, as well as for receiving various state benefits such as driver's licenses.[90] Refusing to register can also cause a loss of eligibility for federal financial aid for college.[91]