Liberal ideology is pretty much the same as Communists in that they have elevated political thought to a level of  morality that brooks NO dissent.  Since they claim the moral high ground and exclusive possession of "the peoples welfare" anything else is immoral and goes against ALL people.
Progressives and liberals always argue that they and they alone speak for the citizens of whatever nation they are in the process of subverting.
This was the usual Communist line of attack against those opposing them.  It was always "the enemies of the State" or the "counter revolutionaries" who needed to be "dealt" with.   Violence was their preferred method or "show trials" put on for public relations purposes.  Anyone opposing them was depicted as having NO right to exist or to be free.  This political movement became a religiously themed secular based model complete with inquisitions and firing squads.  Once the moral high ground is  claimed anything goes.  That is what we here are dealing with.