> Is this a sign democracy is weak? Or is it a sign that the political process has to choose between mutually exclusive popular policies?
It is a sign democracy is fake. Democracy only exists at the grace of someone/something else that decides these very large (in terms of cost) and unpopular policies. And the only thing that really matters is whether people advance economically. This works in democracies because, in a democracy, it's very, very easy to prevent change, so the institutions and policies that existed before democracy was introduced (or before it was real democracy) persist almost everywhere.
Authoritarian changes, and eventually war, is what happens when you have a sustained economic deterioration in a country. The form of governance matters on an individual level, but not on a country level. We're in the first stages of that now, and it's hard to see anything happen but it getting worse from this point forward.
One application of this: if you want to defeat MAGA, you need to pay middle America. MAGA voters vote MAGA because their economic situation has been deteriorating since, well, really since 2008 (with local areas, like Detroit, further back), and accelerated since COVID. A very, very visible part of this deterioration on a household level, sorry, is the increase in household medical spending that is the result of ACA. Yes, it's a very good deal in terms of "how much medical care do I get for $x" (esp. if you're poor), but a pretty bad deal in terms of "if I don't care about medical anything, how much $ can I spend right now?" (especially if you work for those $, and what especially matters if it's more or less than last month/last year/last ... it's less)
More generally, medical and pension costs for the aging population are reducing everyone's standards of living ... and this will keep getting worse for at least 2 decades. We need a solution for this. Republicans' solution is to throw everyone to the curb (less medical care, less pensions, less public transport, even less education, less universities, ...). Can we do better? How?