I think the main thing that should disqualify him would be his lack of intention. But yes, that's the best-case result of his presidency.
Attacking the media is not healthy or helpful.
His most egregious crime is destabilizing public trust in climate change facts. The world climate is changing because of human actions, and drastic action must be taken by world leaders to prevent catastrophic damage (aka, human extinction events). Leaders like Trump that deny the facts contribute to the damage that may cause these extinction events.
So if you call contributing to effects that could lead to flooding most of our major population centers with rising sea water over the next hundred years "making america great," by all means support the man.
EDIT: Because Trump supporters always say "but Trump didn't say x y z!"
Let's listen to the man: https://twitter.com/realDonaldTrump/status/26589529219124838...
"Listen to what he says, he's going to make america great." Yea, I'm listening.
If coal is dead, so are millions of humans. It remains a significant source of global energy, especially in developing countries.
We can craft strawmen and knock them down with cherry-picked quotes all day long.
Exhibit A: Hillary's "super predators" comment - https://www.youtube.com/watch?v=j0uCrA7ePno
Exhibit B: Bernie's "white people don't know what it's like to be poor" comment - https://www.youtube.com/watch?v=z6IlGoeDIUQ
If we don't do something about climate change right now, it will kill our species. We were doing something, and those efforts are already being reversed via anti-environmental (and anti-human) EPA appointments.
Your arguments about racism are irrelevant to me considering the context.