I'm going to assume from your title that you are legitimately asking a question and not just trying to provoke people (though that can be fun!).
First off, in the information age, no one can convincingly argue that people are "brainwashed" into a religion. If people are ignorant of the tenets of their faith and of the dozens of other options, they are willingly so. Therefore, I think that, at least to some extent, people select the faith that best fits them. In fact, the self-selection runs so deep that it applies to what their faith actually teaches -- for better or worse. (http://www.huffingtonpost.com/celia-wexler/cafeteria-catholics-are-i_b_12659234.html)
Secondly, what do you mean by "intolerance" and "promoting hate"? From what you've written, I assume you're talking about Christianity. Is blowing up an abortion clinic hate? Yes. Is assuming all Muslims are terrorists intolerance? Yes. Saying that you personally don't support gay marriage, and you can't do anything to stop it since it's legal now, but that you won't bake a cake for their wedding -- is that intolerance or hate? Sorry, but no. Tolerance doesn't mean total acceptance, it means putting up with things you don't agree with ... including other people's views on what you believe in.
P.S. I can't speak for other religions, but I know in Christianity the reason God was "mean" in the Old Testament and "lovey-dovey" in the New Testament was that in pre-Jesus time, there was supposedly no heaven or hell, so punishment had to be meted out in the good-ol' present.
It definitely was a question to see how others think, and yes it was Christianity but I've seen the 'pick the hate and use it' mind set in many other religions so didn't want to single anyone out specifically.