Do you really think you can control how you think? I think that the only way to change your mind is through the introduction of new ideas from an outside influence (e.g. other people, sensations, whatever). This makes me think that how you think now must be a result of all of your conditioning up to this point. So, I ask, can you really blame someone for any trait? For example, following a certain religion; for being a liar; for being selfish etc..
My answer is I don't think so. This is a reason why I try to have compassion for everyone. Practicing this has lead me to a happier life, and with it I have erased my hatred. This idea has simplified my life for a long time.