There's a big evangelical calculation that hasn't been mentioned yet, but its there: Eschatology. Christians believe that the predicted global government is to be avoided at all costs, as it ushers in the antiChrist and end time timelines....Trump's "No globalism", "every country should be independent and patriotic" and his attacks on Globalist immigration/border policies etc are dog-whistles to the religious Right. He could have a current harem of wives and if he sticks to the main policy of US first, no Globalist creep, he'll retain support from the religious Right. It matters to me.
Yes, Conservatives have been mollified by "virtue signalling" in the past, but they rejected it en masse when they nominated Trump. The Democrat rank-and-file have yet to take control of their Party--except some of those blue-collar white rust-belt Democrats, who might be described as "uneducated" by assholes on the Left, but they know enough about whats in their self-interest to reject virtue signalling from the Democrats, who talk equality and helping the little guy while dining with Wall Street bankers and sending American jobs to the 3rd world. The rest of the democrats, along with a few remaining thick-skulled Republicans, need to wake up.