[deadpannini]

The standard you've laid out proposes that any statement about a man's experience in a relationship is by definition misogynistic, because it's centers the man (and, of course, erases women). Do you stand by that?

Additionally, consider that you are the one bringing the nagging wife trope into this: it's merely one of many possibile explanations and unhappy marriage.

[gsk22]

The difference is the original statement was not about a specific man's experience; it was a generalization about married men's experiences as a whole.

Saying "I was in an unhappy marriage and it made me a great philosopher" would be fine. It's the generalization which is an issue here.

[xigoi]

If someone said something similar about married women, would that be misoandrist?