It's literally nonsense, and the equivalent of Christian Zionism / eschatology in that it's a set of incredibly harmful, baseless beliefs that advocate for mass misery in the name of vague hope of an accelerated magical delivery of human kind to a new era of happiness and joy.

The US is well past the point where radicalization is an unreasonable response. It's radicalization paired with stupidity that's a problem, and that's what we have with the accelerationists and MAGA.