Earlier quoted context omitted.
I subscribe to the idea that the most important aspect of democracy is to be able to kick out the incumbents (and less important is that every opinion gets direct representation). I think for all the challenges in the US, it does this quite well.
The problem you have in the US is that you only have one alternative choice, so if neither choice is good, then you have no recourse
There are lots of problems with democracy (just fewer than the other potential systems as has famously been said). Imo a two party first past the post system can actually help regularize the will of the people by forcing parties to align with actually electable platforms and not dig in on single issues. Lots more to say about that, I just want to counter the usual rhetoric about how proportional representation or similar systems are somehow automatically better