By virtue of being Trump supporters they have to be.
Trump objectively failed in almost everything he tried. And some people are proving they would literally rather die than admit they were wrong. No really, literally, anti-maskers.
I've said routinely that it is difficult to be a Trump supporter without being a hypocrite. I gave people dozens of chances to say "I like Trump, but he was wrong this time" and got over 99.9% "I choose not to answer and admit I'm a coward" responses. But now, we're seeing how bad it is, because not only must they deny the reality that Trump objectively failed at nearly everything, they don't even believe numbers exist.