It won't stop with conservatives being barred from communications. The actions of these tech oligarchs aren't ends in and of themselves, but rather the first step toward something far more sinister. They are openly proclaiming their intentions for conservatives to be economically cutoff, socially expelled, and perhaps eventually physically incarcerated.
However, I suspect that they must be scarred of something happening that could turn all of this around. Otherwise they would have taken their time, enjoyed their victory parties, and waited until January 20th to make their move. All of these preemptive strikes and plans for invoking the 25th amendment and impeachment don't make any sense unless there was something they feared would happen to prevent their victory.
Anyone who has not read Orwell's "1984" (or at least see the movie), needs to do so now.