A mirror will greatly help in this process for many of them (unless they do not reflect in a mirror).
All the Democrats have is this: “Americans are deplorable, ignorant, racist, and homophobic. America was never great.”
That is baked into the Democrat/media/academic complex. They hold it as a truth that is self-evident. They cannot disguise their disdain for ordinary Americans, no matter how hard they try.
It is just not a winning message in large parts of the country.