So it would appear that the intelligent right-winger's current defense of Trump is roughly:

*His corruption and incompetence don't matter.
*Our problems really come from [some red herring]
*Everyone's corrupt and incompetent in politics, so Trump is just normal.

Also, very crucially, if you are angered by Trump's criminal behavior, incompetence, or sociopathy, you're emotional (anger is an emotion) and being emotional, you're biased.

Whereas their indifference to Trump's behavior indicates how cool and objective they are.

There's also a gaslighting element, where the idea that Trump and his movement are abnormal and abhorrent is presented as evidence you are obsessed with Trump.

All in all, pretty efficient self-deception.