I doubt it has anything to do with data-quality, I'd be surprised if even 10% of climate denialists have studied the numbers. Remember >20% of US citizens are still creationists, a lot of people aren't emotionally ready to believe scary things, and maybe they never will be.
I take it you have data against creationism?
Or that it is somehow less “scary”?
And believing the world ending as in "the day after tomorrow" was the "still mask wearing" of the 2010s. Fear.