you mean, like here?
you write a comment only to see people downvote, only because they have different opinion. You don't like democrats? you are stupid. You like democrats? you are stupid too. You claim you avoid politics? you are certainly hidden lover of the other option, the one I hate(without really knowing why).
Level of negativity depends if the corridor you talk to is filled with people like you. And that in my opinion is very dangerous, people convinced of their superiority have no respect to others, who have different opinion on any topic. So they funnel into their corridors where their sense of superiority is reinforced.
I'm also of the opinion world is increasingly filled with egocentric narcisistic people Narcism is very toxic, and unfortunately narcisists will extremely rarely see it in them. Narcists think everything and everyone in the world is lesser than them and hence must submit to their will.
Anyways, the answer might be - less internet in your life is better for you. Talk to real people, in face-to-face setups people are less prone to tell nasty stuff, and by the very virtue of social interactions will have to confront different world views.
Peace.