It's really, really hard to see in yourself when you're being turned into an extremist by an echo chamber. It's a self feeding cycle. The more extreme you get the more extreme your filter bubble becomes. It looks normal to you at any point in time. It happens slowly over time and it's hard to notice. If you're lucky one day you go to smoke it up with your hippie friends and you realize they're all talking about bail reform, solar power and sustainable ways to raise beef and you're talking about toppling statues, silencing wrongthink and seizing the means of production and realize that something has changed. Some people realize they've been radicalized and step back. Others think their friends have gone soft and double down on their new ideology. Most will never see the change because it happens so slowly.