At this point, it looks like the Democrats are probably going to run an “Anybody but Trump” campaign like the “Anybody but Bush” campaign they ran in 2004 (the only time since 1988 that they lost the popular vote). My guess is that they’ll repeat what Hillary did last time and base their campaign on “Donald Trump is an asshole, and his voters are racist deplorables.” That’s not going to win the sympathy of anyone who is not already a Trump-hater anyway.
The idea that the Democraps are a genuine opposition party is a joke and a farce. While Republicans are the party of the traditional 1% Chamber of Commerce types (the right-wing of the plutocracy), the Democrats are the party of the 0.1% tech and financial oligarchs (h/t Richard Cheimison) whose “base” are the left-wing of the middle class seeking upward mobility through the state and promoting their own urban-cosmopolitan lifestyle interests. Hence, the emphasis on “identity politics,” ecology (“I’m cool because I recycle”), the welfare state (“More free stuff”) and gun control (“Can’t have them icky rednecks and brothas packing heat’). Anti-imperialism is not something that is even on these peoples’ radar. Many of them are openly pro-imperialist (“Muh human rights”). Nor is any serious analysis of geopolitics, class relations, or statecraft.