To be fair, it makes sense why many men are dismissive about parenting while many women are biologically driven to be very involved. Most mammals (and we are mammals) have very segregated behaviors when it comes to rearing young. Except for a few exceptions, most other great apes have several males who (in a pecking order) impregnate a group of females and then the females kind of hang out and help each other with baby rearing stuff. The males are mostly there to gain benefits like sex/the biggest share of food and give protection to ensure their offspring succeed.
And in most great ape groups, besides the males who are the "successful" ones that get to mate and breed, there are the "outsider" males who basically hang out at the fringe of the group trying to rape females as their way to pass on genes when they can and steal food from the core group. These males tend to be dysfunctional/anti social in nature, and the dominant males tend to protect the females as much as they can from these males.
To some extent, in human society (especially since we've switched to a monogamous male/female pairing system of mating/creating families), because there are generally less of those males who fall into the first group (the caretaker/provider/protector types) and more of those males who fall into the second type. Since there are only so many of the "good" type of males to go around, there are invariably a lot more "shitty" males that end up having children with women (this increases in percentage as your poverty level increases).
Anyway, just some food for thought, considering how most of our closely related species behave when it comes to sex/relationships/child rearing.