My experience with this is that when I punch back with actual facts, the original author goes silent.
The current far right wing stream of consciousness really is too crazy for me to engage on a personal level. In my opinion, those people just need to be shouted down.
As someone whose politics leans left of Bernie, I'll debate a true libertarian who sticks to a pattern of thought consistently, but at my age, getting involved in a debate with a lot of these clowns is simply unhealthy. At my age, boiling blood can probably cause an aneurysm, lol :-)