for various reasons, including age demographics, twitter makes the country look much more left then it actual is...
then the media picks up on the twitter created story and this creates more twitter activity so you have feedback loop bubble
this is pushing the left even more left and out of touch with much of America
everyone knows Trump is correct
Another reason is the decidedly leftist tilt of the top management and many employees of Twitter. They seem to go out of their way to favor leftist opinions and posters. Their censorship algorithms and employees reviewing those issues seem to pick on conservative posters much more than leftists.
So the bias of Twitter itself also plays an important role.