I have a browser extension that blocks comments on every site that has them. I highly recommend it. The kinda stuff I read has no "discussion" of value and more often than not just leaves me feeling bad for the rest of the day. I try to remind myself that they're just Internet people and probably a minority in the grand scheme but that doesn't really help me a whole lot because, well, they're still people. A non-zero amount of actual, real human beings exist with attitudes like you see in comment sections and that scares me. So, out of sight, out of mind. Here's a very good transcript from a show that talked about something like this recently.
Part of that's not just what you're looking at, it's who you are....a lot of times when people say "The Internet's terrible" or "The Internet's wonderful" what they mean is their Internet is terrible, their Internet is wonderful. The things that they choose to expose themselves to are good or bad.