Smoking weed doesn't make anybody a bad person. It's literally the safest drug that it shouldn't even be considered a drug. And it makes people mellow and chill unlike alcohol. I don't know whether or not you do it but it's not harming you or anybody around you and it shouldn't be anybody's concer.
I'm aware of the side effects of marijuana, I took health classes. I don't smoke it anyways so it really shouldn't be a big deal.