One thing Weinstein argues in this is that the fractiousness of the US would make it harder for the US to project overseas power. I would argue that’s a good thing, obviously, as I think multipolarity is preferable to unipolarity (i.e. less concentrated power, particularly on the global scale, is better than more concentrated power). But Weinstein fears this will embolden Russia and China whom, as a good liberal, he regards as more regressive than US hegemony (and they obviously are by modern Western standards). However, one of the main things that separates me from the conventional left is that I do not regard “Progress Uber Alles” to be the primary value. Avoiding concentrated power is the primary political value (at least most of the time and in most circumstances).