<human>: Can you summarize the given text in a few sentences?

I love Reddit. I have been using Reddit for about 2 years now. However, the more I use Reddit, the more radicalism I see. When I talk about Radicalism I am not referring only to the Radicalism we all think about (radical Islam for example). I am referring to people that are so passionate about their subjects in their subreddits that they are willing to antagonize people and give them death threats. You read that right. For example, I went to a Vegan subreddit not to troll, but to get an understanding on their viewpoints. I described myself as a meat eater wanting to now more about vegan viewpoints. I backed up my reasoning for eating meat and I have never seen so much hate in one subreddit. I got numerous death threats, people called me a murder, people told me to kill myself, ect. Extreme. I go to r/relationships to try get an understanding about my relationship problems I have been having. People tell me I am insecure, I am a pig, I am a loser ect. I go to a politician's subreddit to talk about the growing issue with political correctness we have in this country and also bring up free speech a lot. People call me a facist, a Donald Trump supporter (even though I am not), a hateful bigot, ect. What I am realizing is that these subreddits are breeding this extreme radicalism and it is crazy. A lot of the rules include "no personal shots, do not insult" but still people get away with this. Granted this is the internet and there is no "safe space" (not that I want one anyway) but people are being unnecessarily hostile. Does anyone else feel the radicalization growing in each subreddit? It seems like the most seemingly innocent subreddts can be radicalized and contain the most hateful people. Does anyone else experience this? What is going on over here?
<bot>: Subreddits are becoming more and more radicalized. This radicalization is breeding the most hate-filled people I am encountering.