I don't really believe in any higher being. I'm not of any particular party affiliation, either... just whoever supports most of what I believe in.
Gay marriage? Doesn't bother or affect me at all, go for it.
Abortion? Abortions are necessary. The less stupid people who have kids, the better.
Gun Control? I think I should legally be able to own an Uzi if I so choose.
Prostitution? Why not? It's just sex. Who cares if you pay for it? You do the same when you go pick up some woman in a bar, buy her a drink, then take her home for a one night stand.
Marijuana? Legalize. It's relaxing. I actually learned a lot more in high school while stoned than I did not stoned
Light up a joint, sit in my room and read books. People should have the right to do whatever they want to their bodies. Legalize it, tax the hell out of it. Imagine paying $20 for a pack of joints. Cheaper than buying it off the streets AND it'll be legal. Not to mention that excessive tax could go toward better uses. If you don't like it, don't use it and don't worry about it. This is FAR from the cause of your troubles.
Other drugs? I don't see why these should be illegal either. If someone wants to do coke, they'll do coke regardless of if it's legal or not. If you're willing to put a substance in your body, better be prepared for the consequences. It just seems silly to me for us to control what other people do to themselves. "I wanna use heroin." "No, don't do that. It's bad." "But I want to." "No. Illegal." Doesn't make any sense.
Euthanasia? Same with prostitution, drugs, and abortions - it's your body. Do to it as you wish for any reason or no reason at all. None of my business.