You cannot put squeezed toothpaste back into the tube. Once your eyes have been opened no amount of social media content will make you go back. I reckon the vast majority of the population have already decided who they are going to vote for in 2020 and no amount of censoring / memory holing is going to make them change their vote. If anything, this blatant censorship will make those on the right, or even centre right, dig their heels in even further.
Do they at least tell you the specific comment?. Also I've gone past the point of being angry at this sort of behaviour because the horse has bolted and the toothpaste tube has been squeezed. Enough people have woken up to guarantee Trump a second term. All this drilling holes in water behaviour by the left actually gives me a nice warm feeling of Shadenfraud (however you spell it) because we know and they know that their power is diminishing day by day.
Talk about central casting 101 for a certain ethnicity.