I notice that the more someone is active on Twitter (especially politically), the more toxic they are. They tend to carry that whole Twitter etiquette with them

I notice that the more someone is active on Twitter (especially politically), the more toxic they are. They tend to carry that whole Twitter etiquette with them everywhere, be it on Slack in the workplace or in the office for example. I wonder if Twitter, the way it works specifically and the incentives it gives to users, has a net negative effect on its users' wellbeing in general.