Yes they're stupid but that's prerequisite, there are stupid people who aren't liars and who don't get any joy making others chase their tails.
I've been doing online politics a long time, since CompuServe, and many many times I've seen the right wing trolls post some lie, my example being "it's the Democrats who are the racists," using 50 year old examples, and someone always takes the bait and points out that all this switched after the CRA.
OK, fine, the lie is rebutted. Then within a day, if not within an hour, the same troll does it all over again, unchastened. I used to wait to click the ignore, now I click it at the first lie.
For decades I've read wistful wishing for a conservative who could debate, someone who wouldn't just troll and lie, and I know you won't like reading this, but here goes:
They don't exist.