Except that argument admits a means to evaluate it. You take the thing repeated ad nauseam and subject it to an evidentiary requirement. Are people actually being held without habeas corpus? Are people actually being executed based on their ethnicity? If anything in this nature is happening, has the rate of it significantly increased recently or has it been going on for decades?

The last question is pretty important if your argument is "Trump is a fascist and all we have to do is get him out", because then that argument is erroneous and you have to actually change the status quo instead of returning to it.