I have found that directly calling such people out results in a knee-jerk reaction of flagging and downvotes.
It seems that any criticism of the republican leadership results in a horde of bigots mass flagging and downvotes which then prevents me from responding to attacks and responses.
Dealing with the bullshit and falsehoods always takes a lot more time than it takes to discredit facts, and HN’s approach with flagging does not help.
As a matter of fact, I had a comment where i paraphrased Popper almost word for word regarding the paradox of tolerance, and then quoted Trump saying he wants to outlaw trans people, and i got flagged.
It took for @dang to come and unflag me.