there are (a) non-shitty men

If you mean not shitty on the whole, I'd agree. If you mean immaculate, I would disagree. Manhood makes people worse. There are good men, but they are good in spite of being men not because of or with no relation to their manhood.

I'm simply unwilling to say that a trans man is actively choosing to be a shitty human by virtue of choosing to be a man. That doesn't seem right to me, there's something drawing trans men to manhood, and I do not believe it's as simple as wanting to be a misogynist.

You might remember that I said that womanhood is also shitty. I don't think a trans man is choosing to be shittier, but I think they certainly aren't avoiding being shitty any more than cis people are.