Why do people hate LGBT so much? Like what is wrong with society.

I was watching this video on YouTube ( http://youtu.be/wgm3lb9JUU0 ) and then I also found another one and both were so annoying to watch. Like I was actually sad and angry all at the same time. And then I was thinking like what is wrong with people that make them find us so threatening. Why is society so screwed up... Does this annoy anyone one else!