My guess it has to do with their 2 party political system. You have to SHOUT and pretend THE WORLD IS BURNING GAYS STEAL BABIES ALL POLICE IS RACIST EVERYTHING BAD THAT HAPPENED TO YOU IS BECAUSE OF THE OTHER DONT VOTE FOR THEM to scare 1% of voters one way or the other and get political power.

Messages of those extremes make their way over the big pond way way more often than the lady doing a job that she enjoys, having a pleasant evening with her family.