OK, while I still can't be arsed to take the argument point by point (for the same reason I won't argue point by point with a person that insists the Apollo landings were faked and the Earth is flat) but I will tell you right not that NOTHING you cited in the OP amounts to anything even vaguely resembling proof.
Firstly: Your aggressive tone is entirely unnecessary. We are spitballing about a computer game. GodBen managed to reply without being a jerk and his points came across all the more strongly for it.
Secondly, the title of the thread is the argument for/against IT. Saying: "Look I can't be bothered making coherent points, just take my word for it that it's not true." is a worse argument than saying nothing at all.
They're mostly either inaccurate assertions or just inconsequential details whose meaning have been deliberately misinterpreted to fit a theory. When assembled in context, it just all falls apart. Really, the literal interpretation of events makes much more sense than IT.
Since you can't be arsed, I'm actually going to go ahead and debunk my own arguments, because you're acting like I'm some sort of deranged fanatic who won't see reason. I actually WANT proof that IT is not true- it would be a relief to me! This is the whole point of this thread- to gather all evidence, for AND against. If anyone has any actual links to Bioware debunking the theory, please post them! Lots of talking about it, very little actual links.
So, taking an extremely skeptical eye to the IT indicators:
Explicit
1. The trees in the end sequence: As you kindly pointed out Reverend, there are indeed trees on the right-hand side prior to the moment IT supposes the dream sequence starts. DEBUNKED
2. The wound to Shepard's side: Could have been made during the battle, or Andersen could have shot Shepard as she shot him, or the Illusive Man could have shot Shepard as she shot Andersen. DEBUNKED
3. The child and the dream sequences: As Reverend notes, these could just be a symbolic examination of the mounting toll of the war on Shepard. DEBUNKED
4. Shepard's eyes: Could be a coincidence that they turn blue in the control/synthesis options. Lots of things are blue, it's one of the primary colours. DEBUNKED
5. The breath: The rubble could be on the Citadel, and space magic could have protected Shepard from the blast. In fact, space magic could have protected Shepard even if he fell to earth from the Citadel. Space magic also protected him from the destroy option destroying all technology. DEBUNKED...uh, sort of...
Implicit
1. The musical cues: The game was being rushed into production and they probably just slapped whatever music they had available onto the scenes, so any inferences drawn from the music will be flawed. DEBUNKED
2. The 'garden world': Okay, so in the extended DLC, what they will reveal is that in the moments after the final charge in London, Joker:
a. bought the ship down to London.
b. Told EDI, Liara and Garrus to get on board. Even though this is something that Liara and Garrus would NEVER DO, they did it for some reason. Y'know, cause bad writing.
c. After picking them up, Joker inexplicably high-tailed it to the nearest Mass Relay.
d. After the Mass Relay overloads, the Normandy survived the overloads because of space magic.
e. After surviving the overload explosion, the Normandy crash landed on a garden paradise. EDI was not killed by the 'destroy' option because space magic.
NOT DEBUNKED. This makes no sense. The 'literal' explanation does not explain this. IT does. When you remove all other alternatives, whatever remains, no matter how improbably, is the truth.
3. The 'stargazer' epilogue: The line just before 'one more story' explains that what we just saw 'really happened'. Evidence cancels itself out. DEBUNKED
4. The black distortion: This could just be a sign that the Illusive Man is trying to exert control over you. DEBUNKED
5. The 'hum' on the Normandy: Engine trouble. DEBUNKED
6. The voice of the Star Child: Even if the ending sequence is real, it seems clear the Catalyst took the form of the child because it represented your guilt over his death- so the voices in your mind could just be a side effect of whatever process the catalyst used to gain this information and present it to you. DEBUNKED
7. Andersen and The Illusive Man: Andersen mentioned that the walls in the Citadel were moving, shifting- this could explain how he got to the console before you, even though there appeared to be no other way in or out. The Illusive Man would have prepared for this moment for years so no doubt had a secret way to arrange his presence on the Citadel. DEBUNKED
External
1. Official reaction: The reaction has been mixed, with many statements saying that they stood by the ending as-is. As I say, I don't think this debunks the theory and I've seen NOTHING out of Bioware that refutes it- would be happy to see something (anything) that does. NOT DEBUNKED
2. Knights of the Old Republic: Irrelevant data point. DEBUNKED
3. How games are made: It's been repeatedly stated that the ending was rushed- all problems with the narrative of the endgame, including the garden planet 'bug', can be explained by this. DEBUNKED