Why in the world should I, or anyone else for that matter, throw our own experiences of the game down the drain, ignore constant reinforcements and evidence of Sephiroth and his control over Jenova,
Really? What constant reinforcement of Sephiroth controlling Jenova did you see in the game? Tell me, please.

ignore official guides which are published by Square and feature interviews with the team-members
Yeah, but again, not written by the team-members, nor said anywhere that it is endorsedy by them. SQUARE owns Final FantasY VII and anything to relate with it. Kitase does not and if Square says "you approve of this" you do. I respect Kitase immensely for what he created in FFVII, but I KNOW for a fact that the game is what he envisioned and created. The guide is just published by the company the man works for. In a sense, one is far more reliable than the other.

What in the world grants you the right to say that you are right, that 95% of every other FFVII fan and Square Enix themselves, are wrong?
You seem to think you are in the majority by a significant margin... I don't think so and I don't know if you can back up your claim. I won't dispute that a lot of people do think Sephiroth was in control, but how many of said people would be willing to paw through the game and write an entire essay on it? Do these fans even write or speak coherently and not use chatspeak? I wrote my idea and theory based on what I found in the game and LOGICAL REASONING. I don't think one can dispute logic.

It's funny. I don't see anyone attacking the authenticity of the FFVIII, IX, X, or the X-2 guides? But of course your attacking the FFVII one as it directly provides proof of events, and goes against everything that you guys have said...
I am not interested in FFIX or any of the others at the moment. Also, where is this "proof?" As far as I read, the UOG just SAYS Sephiroth was in control. No explanation.