So why does almost everyone wo supports a canon ending want Destroy to be canonized?

The first game frequently ends with Shepard convincing Saren to commit suicide (I personally usually opt to fight it out, but I believe most players do opt to use either the Charm or Intimidate option)... Perhaps cornering us into building and then triggering the Crucible without truly knowing what it does is the Reapers essentially convincing each cycle to do the same thing?

I'm just throwing it out here as food for thought... yet another way to interpret the endings differently.  Despite one interpretation being more popular than others, the fact still remains that the endings can be interpreted in several different ways... and that is one reason why I think Bioware should never declare any one of them canon.