I don't know why you hate religion. You might have a valid reason. However, I think hared is never good.
Logic teaches us that it is impossible to proof anything without making assumptions. I believe in science, but I do recognize it as a belief system which is based on assumption no more or less rational than any other belief system. For instance, the assumption that the simplest hypnosis is the most likely.
Any major religion today leaves much room for interpretation, but I think it is clear that the values that they represent are generally good. I think we should pity the murderers of Vile Rat for misinterpretering their own religion instead of letting this create more hearted.
I hate religion for its brainwashing. "Hate" might be too strong a word, let's say "strongly disapprove".
To be honest, I don't care particularly, if god exists, or if other people believe that god exists. There were a lot of good people who were religious and did no harm. However, in modern world there are still trials (Pussy Riot in Russia, numerous Sharia trials in islamic countries) or killings happening as a consequence of cultivating religion. I think this is a perfectly valid reason to dislike religion as institution.
But again, that's not exclusive to religion.
No, just pointing out two things:
1) In the marketplace of ideas, ideas that work should be able to outcompete ideas that don't work.
2) In the modern world (as opposed to the ancient world), religion's purpose is to keep that from happening.
(Shrug) I'm only human. When I'm right about something, I don't like it when I have to compete with someone who's not.
In my opinion, the purpose of religion is to tilt the playing field in favor of people who are wrong -- or who at least refuse to be held to the same standards of proof that I am. What's not to hate?