Occasionally, I'll see/hear/do something and think that it would have made a good status update/tweet, but then I remember that these things have happened to me for decade before social media was a thing and life was fine. Some I'll share with my wife or a friend, most just disappear and that's fine too.
Why did you put up with racist and misogynistic people on your feed? Why did you feel the need to delete your account instead of unfollowing people?
My feed is nice and clean, with family, some friends, and some pages.
There is a gap between "I want to know what people I know are up to" and "I want to meet with those people one by one to see what they are up to". Some people just want to passively watch and that is ok.
And this is the culprit for loneliness.