Because it's more comforting than admitting they've ballsed up. Not entirely unlike Brexit.
I think that is far too simplistic BT. I think the MAGA's really believe in conspiracies, the 'deep state', nefarious immigrants and liberals who they think are going to convert them all to gays and transgenders and they are all going to be subsumed by POC - it's a threat to them. It's a paranoia that is currently being tapped in to by the far right administration. What's worrying is that it is all too easy to tap into.
Ever met a guy who is in complete denial of his sexuality - defending his machismo to the point of being hostile?
I see no difference. Aggressively defending God and Country, their way of life and 'family values' because they have convinced themselves that Liberals/illegals/the deep state are actively planning to erode those values? The Kamala Harris's and the Cortez's are the archetypal purveyors of an intolerable ethic. It's almost a fear of intelligence, of abstract thought, of philosophy in same vein as Plato's Republic
John Lennon:
'A working class hero is something to be; they hate you if you're clever and they despise a fool'.
They are desperately clinging on to a set of contrived values. God is a chocolate teapot and chocolate teapots are fragile. Ego's are fragile. Immigrants are a threat. Liberals want control and will convert your child to a perverse sexuality. Worse, some of them don't believe in the chocolate teapot.
Russell's teapot is an analogy, formulated by the philosopher Bertrand Russell (1872–1970), to illustrate that the philosophic burden of proof lies upon a person making empirically unfalsifiable claims, as opposed to shifting the burden of disproof to others.
What no god?! No god means lawlessness and without the virtues of god you have no morality, no heaven to go to. It's so very frightening to them. It's like they are stuck in that juvenile state where the world is seemingly chaotic and inexplicable and without a God, nothing makes sense and existence becomes somehow meaningless. You have to defend it with all your might.