...That should be the reverse
A poltician that is corrupt, arrogant, and beliigerent that is also competent at doing what she does makes it even worse?
That only proves she knowingly is doing all the bad things she does.
I'm not talking about competent at being corrupt. No matter how corrupt she is, Clinton would at least have been aware of the responsibility that she has to maintain the peace and compromise. The ability to compromise is key in politics. And I suspect she did at least have the greater good of the country at heart.
Trump certainly knows what evil he has committed. I don't doubt that his only interest in becoming president was to further his business interests and gain power and immunity from criminal prosecution, just because he could. Just because he's inexperienced and volatile doesn't mean he doesn't know the difference between good and evil.
You make him out to be some naivling, like a child who looks cute because he's holding daddy's gun. He knows exactly what he's doing, and he's a skilled manipulator, but it doesn't make him presidential material.