There are 330 million of us, too. The vast majority can be reasonable people and that still leaves millions of batshit crazy Americans out there to write about.
Edit: typo
Edit: typo
In day to day life, it's fairly acceptable to just acknowledge that some contingent of whichever population is made up of lunatics and move on with your life. It's only other lunatics, typically also only on social media, that can't do that, but normal people just don't bother paying attention to them. and hope they burn out.