They don't have to care because there is so much wealth to acquire in the short term. Trump alone will enrich himself with billions in bribes from foreign companies. The DOGE/Project2025 annihilation of government programs will result in drastic privatization with all of the billionaire class benefitting immediately.

All of the dark outcomes you describe are possible while a certain class has profitted already so much they don't care and will happily retreat into their bunker.