You need to learn to separate the fly s*** from the salt & pepper. There are ignorant people, who may very well consider you to be the ignorant one, wherever you go. Doesn't matter if it is a web site, a bar, a church or any other place. Whether live or on-line, you just need to learn to either tolerate or ignore people who see things differently than you do. Leaving HBT, or any other situation, is giving up and giving in.
Where I come from, many of us carry firearms. We don't routinely just shoot people that we don't agree with. Most of us try to reason with them. If that doesn't work, we usually just ignore them and let them quietly go away. Life is just too short to let some asshole bother you.
Have a wonderful day and try to enjoy the better aspects of this great hobby.