I cannot defend BioWare regarding SJW stuff anymore. That's it.

*I disagree (obviously). Many people will argue (as you did) that Alec was simply making a motivational speech. Others saw it as BioWare lecturing some of its customer base on a politically sensitive issue. I think this devolves into a larger question / issue regarding colonialism, which is something that previous space stories (in several genres) suffer from. BioWare attempted to flip the colonialist narrative on its head by giving us, the player, the role of immigrants who arrive unasked in a new galaxy for the simple reason of being "dreamers," itself a term with many meanings in the contemporary climate. Without approving or condemning the gesture, I think the parallels with the politically-charged issue of illegal immigration are obvious.

**As for krogan society, the Initiative left prior to ME3. Krogan society should have looked exactly as it did in ME2. What it looked like prior to the nuclear wars on Tuchanka has zero relevance to its depiction in MEA. 

***AI was an issue in the OT, obviously. A story about fusing with an AI comes at a time as more questions are being asked about the role AI should play in our lives, and the regulations that some (like Elon Musk and even Bill Gates) are demanding because of the potential dangers it poses. There are also discussions about the role AI already plays in our lives, from fixtures like Amazon's Alexa that listens to everything you say in its vicinity to Twitter AIs tripping over themselves as people trick them into saying ridiculous things. It's more than "just sci-fi" at this point. The OT crafted a narrative that attempted to consider the problems of Kurzweil's Singularity; MEA accepts the Singularity. That is a huge discussion, and an issue of  concern for a number of people, fans and intellectuals alike.