I think the main problem of social media in general is that it allows for people to find things to instigate them. In essence, a single person's opinion can be amplified. This leads to at least two outcomes. One being that people "on the side" of that opinion will unite into an echo chamber of people with that opinion. Two being that people "on the other side" of that opinion will use it to justify the need for their unification and propagate it through their echo chamber.

Prior to social media, or the internet in general, it was quite difficult to amass large numbers of people in your echo chamber without becoming a person of power (like a president or equivalent). But today, it isn't uncommon for someone with views towards conspiracies or extreme viewpoints to become a "popular" voice in social media. In fact, one might argue that it is easier to become popular by being divisive. Even though most people aren't on either side. The ability to grow a "large enough" side is enough to become an existential threat to the other side. And they end up justifying their own existence.

I don't know what the solution to this is. I don't even know how to reduce it at this point.