Trump supported a violent attempt to overturn the results of an election. In other democratic countries that's called an attempted coup. Not to mention Trump's own attempts to pressure states not to certify the results.
I don't care if Trump has amazing plans or is Mother Teresa and Henry Ford and Benjamin Franklin rolled into one, he is anti-democracy and that automatically disqualifies him, and those who support him should be ashamed of themselves for not caring. (and that's before we get into his character; I kind of liked Trump way back at the beginning, thought he might be a Ross Perot type of guy; but once that recording of him talking about women came out (before the 2016 elections), I lost all respect for him. And all of his actions since then have been completely self-serving. There is no way someone like that should have so much power, not just over the country but as commander in chief of the military.)
So when you have someone who is such a poor character, and who is anti-democracy, policy doesn't really matter.