I think it is nonsense.
I think this "problem" is little more than a hypothetical "What if" and not the looming threat the Catalyst makes it out to be
I think "organic energy" is a buzzowrd for "space magic"
I think Synthesis (and the other choices) are endings for a different game than Mass Effect
I think certain somebodies' psuedointellectual musings got in the way of actually finshing the game
What do you think of that? 
I think it's nonsense, but I think you're reasonings as to why it's nonsense are also... nonsense.
I think the problem exists as much as the Catalyst says it does. However, it's problem is not my problem right now. It has made its problem into my problem. I think your reasoning for dismissing the problem is in itself a problem.
I think the same. That's nonsensical and poorly used imitation of science for the sake of art. Bad art.
I think the context behind the choices and the thematic narrative for it are a divorced concept of the game. I think two of the choices themselves are perfectly fitting for Mass Effect, and I find your denial of those choices as petulant anger at not getting your way.
Of course they did. That's how games tend to end up. Not that I'm supporting what we got by any means (far from it), but you'd hate my idea's just as bad since they'd be a complete deconstruction and outright decrial of your heroic themes and imagery and ideals. I'd have the bad guy win. You'd be the bad guy from the start.
I think the endings are bad. I think your reasons for thinking the ending is bad are bad. That's what I think.