Actual smart analysis
The left detests Trump, to be sure, but I've noticed that Trump elicits a much more visceral sense of disgust and resentment from centrist and center-left liberals than from the socialist and even Bernie left. I think this is the case because liberals are much more personally invested in America's image and its culture, and primarily view their struggle against the right through that prism. Trump embodies the most hard-edged and crass elements of the American right, which makes him a particularly loathsome figure for them.
Socialists, on the other hand, place far less importance on things like the connection between patriotism/America's identity and liberal values, and the personal attributes of a president, than the tangible impact of American policy at home and abroad. For this reason, I think many socialists would fear a competent Republican president who does not engage as vociferously in the culture wars, as much as, or even more than Trump.