why did they oppose Colossus?

the main hint (I can't think of the stronger word needed here) that there could be problems was Colossus demanding they vacate Crete to build something it felt was necessary. Others have suggested this was a little wink to the Colossus of Rhodes on the Greek island of Rhodes, and that the computer wanted some physical representation of itself. Which then immediately brings up the question: was Colossus now showing signs of ego, and therefore was now a god and not simply an impartial, logical 'device' that could help mankind. One would think in theory that Forbin could reason with his creation and explain why such and such was a bad idea ("check your history banks" i think was the line used a few times). That was never explored in the movie, Colossus simply took over and that was that.

As for "not willing to be told what to do", in a strong way we already are. Laws of course are #1 on that list, but virtually every day we are told "you can't do this" or "don't do that". I realize the concept of the movie was 'the fight', I'm just wondering if something was developed that could solve problems (eliminate war, poverty) but with conditions attached, if people would balk. They seemingly did so immediately in this movie.