Why? If I recall he was a womanizer but we can admonish his personal choices while celebrating his incredible scientific and pedagogical achievements.
He was a top-tier scientists but kinda disgraceful in every other aspect of his life. Womanizer is a polite way of saying it, I would choose harsher words. He was also just generally a jerk to the people around him.
Think Edison, more than Tesla.
And he’s celebrated for his contributions as a scientist and educator, not to ethics or social issues. People don’t disavow Ghandi out of hand because he was anti-vax.
Knew him well, did you?
Funnily enough you can learn lots of things when you read books.