I only hate certain types of vegetarians. OP, I have no problem with your type of vegetarians, if you don't like the taste of meat, fair enough. Vegetarians who can't eat meat due to allergies or other metabolic disorders, no problem with them either, not their fault. Vegetarians who think it's wrong to eat meat, this is where we start to get problems. Those who don't want to eat dead animals for moral reasons, but don't preach at those who do, no problem. My problem is the type of vegetarian who preach at me about how wrong and immorral it is that I enjoy my bacon sarnie. They do not seem to understand that I don't want them forcing their morals on me.
Then there's the kind I think are idiots. There are three types of these. There are:
"I'm a vegetarian. My favourite food is fish." Fish are animals too, either don't eat fish or don't claim to be vegetarian. Worse are those who think eating animals is wrong but still eat fish, and don't realise their hypocrisy.
"Humans weren't meant to eat animals, it's unnatural". If it were unnatural for humans to eat meat, then we wouldn't have the enzymes to digest it.
"Eating meat is unhealthy". (exception for those I mentioned before who have health problems that stop them eating meat). No it isn't, it is unhealthy to not eat meat, without meat you don't get anywhere near the amount of protein you need. This one is worse for Vegans, as vegetarians still get a decent protein intake from eggs, milk and cheese. Unfortunately explaining this to people is met with "No, you're wrong" with nothing to back their argument up.
So, if you're a vegetarian, I'm fine with you as long as you don't preach to me about it (applies to anyone's supposedly 'better' lifestyle choices, religious folk, 'straight-edge', etc), aren't a hypocrite who eats fish, and don't try to claim stupid things like it's unnatural or unhealthy.