[edit autocorrect changed divisive to decisive]
They'd rather fall into Russian models of government where a single person can promise you the world and you give it the power to do so, rather than bother with things like "compromise" or "representation".
Re-electing somebody who openly attacked the institutions, instead of taking what happened on Jan 6th as a wake up call is the clear sign.
Why do I single out the Democrats? Because after Trump, they're going to have the first chance to fix this so that it can't happen again.
Afghanistan had a new constitution and legal system when the US pulled out.
As a Brit, my take away is that having a nicely laid out constitution doesn't matter if you don't have the culture there to back it up. The US did manage to deal with one term of Trump, so that's something.
Germany's first two constitutions quickly failed because they weren't democratic enough. The US constitution - despite its obvious flaws - has somehow managed to make it 250 years without causing huge issues, but it is now becoming quite clear that there should probably be a revision to prevent another giant mess like the current one from happening.
Trump caused a lot of suffering and damage even in his first term, his second term (especially "thanks" to DOGE) was orders of magnitude worse.
A good democracy can survive one direct hit, maybe two, but anyone with a working brain cell left can clearly see the cracks in the foundation one needs to exploit to become President - and there will be such exploitation attempts, unless by a huge wonder the next President will be a Democrat, have a majority in both chambers of Congress and prosecutes everyone involved in the Trump administrations.