The problem with this sort of thinking is you are talking a double standard:
When Luther wrote his theological writings and commentaries, anti-Protestant Catholics say we shouldn’t listen to him because he was antisemitic, anti-Pope, anti-Catholic, and said violent things about the Church.
So the message you’re sending is this: whether his message is on or off target, his personal opinions and life as well as “issues” going on in his life make him fair game and we shouldn’t take his message seriously…
But when anti-Catholic folks trash popes in the middle ages for selling indulgences, having mistresses, fathering children out of wedlock, starting wars, pitting European countries against each other for personal gain, exploiting real estate and royal ties for financial power, etc. then Catholics say "yeah yea yeah, a pope’s personal life has NOTHING TO DO with his infallibility given him by the Magisterium of the Church. He can knock over a liquor store and then go home and write down 100% holy doctrine.
We must apply the same standard to both: keep with what they TAUGHT THEOLOGICALLY and ignore their “issues”
Luther was a BRILLIANT theologian; his knowledge of the OT and NT as well as the early fathers, saints, and church politics was unsurpassed. Most Catholics secretly have a sneaking admiration for him; I know I do. He took a stand for what he believed in during a time where he could have and would have been burned at the stake were it not for Frederick the Wise, etc. protecting him in the end. Whether you agree with him or not, he was a genius and his reformation fueled the modern age with democracies and individual freedom. Let’s cut the guy a little slack.