Twitter is a trash pile. Feeds are controlled by algorithms and their job (or the job of the behavioural scientists behind them) is to cause a dopamine release to keep you clicking and scrolling.
People misunderstand dopamine as a "happy" chemical, but it's actually a chemical that rewards you in order to guide your attention. It helps you pay attention to things you should be paying attention to, so things that are pleasurable (sex, food, social interaction) and things that are dangerous (predators, physical dangers, poisons). The parts of our brain that react to dopamine don't know that we're sitting on a comfy couch with absolutely no danger around.
The second best emotion to keep you clicking is pleasure/happiness. This is why there are so many cat videos on the internet.
In first place is anger. This explains why everything on the internet that is not cat videos has a 90% probability of being completely shit.
The best thing you can do online is strictly limit your time in political arenas and use platforms that allow you to curate your experience heavily.
Someone else noted that politicians, CEOs etc. spend time on Twitter, and while I think this is true, they're repeatedly being hit with reality around election time and during earnings calls. They need to learn to ignore Twitter for sure, but I see that as one of the inevitable teething issues that come along with new technologies, and temporary.