There are what I term low information voters on both sides. I would say that on the Democrat side there exists a coalition of specific issue voters (many Hispanic and black voters may fall into this category) women, millennials and college educated voters. On the Republican side there are also many specific issue voters. These seem to be weighted toward white men. This is no doubt due in large part because Trump has going out of his way to alienate Hispanic, black and women voters. Neither side has enough intellectual or wealthy voters aligned with it to make much difference.
You can not win a general election in the U.S. by alienating women, Hispanics and blacks. And it would be especially difficult, I would think, to win with a campaign centered on ad hominem attacks and accusations rather than on issues of concern to the voters; despite the galvanizing effect accusations (the wilder the better) have on your core constituents. (Oddly, in political campaigns, the truth or untruth of a accusation hurled at an opponent seems to play no part, as all accusations are true in the minds of a candidate's supporters.) Insulting those in your own party, whose help you will need to succeed, will make your task more difficult still. There may never have been a candidate for President in U.S. history that was more inarticulate nor more shallow than Donald Trump in discussing specific issues, and that would include the extremely inarticulate George W. Bush.