This seems pretty reductionist to me. Men can absolutely raise children. Husbands in heterosexual couples should absolutely be raising their children and not leaving the entire task of raising them to their wives. Gay men can also raise children. I don't think you meant to be disrespectful, but when you essentialize like this you end up putting women in a box where their role in society is defined by their biology, and you put men in a box where they feel like they can't and shouldn't participate in certain kinds of labor, leading to women shouldering an unfair proportion.
An anecdote that helped this hit home for me was a story this father told about a neighbor of his. He'd be running errands at the grocery store or whatever, with his kids in tow, and he'd run into his neighbor (also a father) who'd say something like, "Oh, you're stuck babysitting again?" And he didn't have the words to tell him, "I'm not babysitting, I'm raising my kids." The neighbor viewed it as his wife's responsibility to be looking after the kids, and if he was participating in this, it was some sort of exception; and furthermore, a chore.
Personally, that's not the sort of father or husband I intend to be.