<sigh>...fine, let's make it about human nature. At the risk of hijacking the thread, I'll address your accusations and leave it at that. I'll try to keep it nonpolitical.
Let's use a sports analogy, an intense football rivalry between Team A and B. They both have rabid fan bases and really don't like each other. I'm a fan of A, but not to the point where I paint my face when I go to a game, and I don't lose sleep if we lose a game. We had a stretch of losing seasons, but got a new quarterback last year and he was supposed to be "the guy". He was going to turn our team around and bring great glory. The problem is, he's just another mediocre quarterback and hasn't been all that effective. That situation puts the fan base in a few buckets:
1. Our teams sucks, we can't win, I'm jumping ship and rooting for B now.
2. Our QB isn't getting it done and I'm not afraid to say it. Still love my team, but won't miss the guy when he's traded.
3. Our team is the best. Always has been and always will be. Don't dare say anything bad about our QB.
I'm firmly in bucket 2. There seem to be a lot of folks in 3 that go to great measures to defend their QB. That's fine, it's human nature, and the folks in bucket 3 tend to dislike those in 1 & 2.