There are two simple reasons for the wars and the camps:
1. When Commodore then Escom bit the dust several small fry with big egos decided that they were the ones who should decide the future of the platform. With no official direction the community flocked to the various 'saviours' and the split was made.
2. People on the Internet are dicks. It's all too easy to hide behind an avatar or username and behave in a way that would get your head kicked-in in real life.