I'm a vegetarian and I have my family eating meat in front of me every single day and I don't really care. It's their choice, I'm not gonna force anything on them.
Some vegetarians make all vegetarians look like a bunch of idiots, which is one of the reasons why so many people are against vegetarians.
A good example for this, is Onision from YouTube. Probably one of the biggest douches I've ever seen. He means all meat eaters should die and vegetarians and omnivores can't possibly be friends. He's wrong in so many ways.
Also, just thought I'd post this here in case some people still don't know: