I don't think I hate happy people, but I partially understand what you're saying. It sucks to have to be a spectator of someone else's happiness while is this same society which denies me the right to decide about my existence in fairly many ways, so my existence as part of this is due to a choice made by others, It can logically translates into a certain resentment when you see others having happy lives without worrying at all about those of us who have this problem of lack of access to death, It seems justifiable that I hate being a spectator of something I haven't chosen to be a part of. I don't know who can really be blamed, but it's clear that the real problem undoubtedly lies in the pro-life mentality, that is what we must focus on.