Radical free speech is important and a cornerstone of the US. Yeah, you've got some real shitheads on voat but also a lot of decent people that just don't hold the previously approved PC opinions. The internet was way better before it began to coalesce into megacorps like google, fb, and reddit. Instead of defending free speech they caved to advertisers. The issue w/ that is someone is always pissed off by something and the smallest groups shout the loudest. Now we've got a situation that's gotten out of hand and even regular conservatives are targeted. Voat is basically a concentration camp for free speech online. They've rounded up all the "wrongthinkers" and sent them to one place.
Before reddit and that Mountain Dew (the hitler did nothing wrong naming contest) troll happened /pol/ was libertarian more or less believe it or not. The PC left is Frankenstein and Voat's their monster. Assholes were fewer and farther between online before they all got shipped to the same place.
When you start inventing shit like "micro aggressions" and telling everyone their racist nonstop... I could provide a thousand other examples. The left has even managed to bring back segregation on college campuses only this time they're called "safe spaces" and black only dorms.
The Radical Left and the Far Right are every bit as bad as each other and more alike than they are different. They both have a need to be authoritarian in order to stay in power. (Horseshoe Theory)
Reddit, Facebook, Youtube, Twitter, etc. have no shortage of racists. They've just got the "right kind" in our weird double-standard culture.
You might be projecting your personal value of truth and integrity unto others, many value it less than having a stable income and most will even value it less than having peace with coworkers and family. As far as I can tell there appear to be many people who can live happily without these values.
Personally I'd consider it misery, just like you. Albeit there are topics that I will not even put effort into researching because my country has strict hatespeech laws, and that annoys me as well.
They are provocateurs and they aren't nice, or at least the people on /b/ and /pol/ aren't which are not the only boards on 4chan, but I still think that they are nicer to each other simply because it's nearly impossible to make a personal insult on an anonymous board.
The people on facebook and twitter aren't nice, just read the comments under donald trumps tweets, it's filled with snarky hatred with barely any facts or arguments, just snarky insult after insult. Say something that would be similarly controversial on 4chan or 8chan (the paygap is real, we're equal or something like that) and there will be a handful of insults but there will also almost always be people who engage in actual discussion and arguments and in my experience they actually make up the majority. That's a big part of the reason I became more right-libertarian, instead of replying with "wow I can't you believe you just said that, omg" etc. they actually engaged in mostly polite discussion.
Voat can be a lot like that at times, too.