The idea that civil society is done and there’s a whole bunch of Hitlerites running around that need punching is not supported by the facts.
It’s really just an extension of how divisive and polarized American society has become. Both the left and the right so demonize each other, that to the right the left are filled with crazy oversensitive hippy tree-hugging [gay expletive]s; and to the left the right is filled with hate-mongering flag-worshiping gun-toting racist misogynist ignorant hillbillies.
One of those is significantly worse than the other.