As a father I can assure you you have no idea what you're talking about.
Echoing this.
The bond I have with my children is profound and primal. The idea that it’s “unnatural” for me to spend much time with them is so ridiculous as to be instantly dismissed.
GP clearly doesn’t have kids or have close male friends who are involved with their kids.
N = 1. now compare the number of single mothers (≈ children abandoned by their fathers) vs the number of single fathers (≈ children abandoned by their mothers).
for every helicopter dad there are ten guys who don't care about their offspring.
I can't speak for the person you're responding to, but my default reaction to people who say things like this is that they probably don't have kids, and if they do, I wonder about the well-being of their family life. I don't mean that to be insulting at all. It seems completely incompatible with being a family- or community-involved person.
And what's society without kids? Whether you're a parent or not, we need kids to do well. It makes no sense at all not to learn to be good with kids, to care about them, to invest in them, etc. They're firmly a core component of human society, certainly not going anywhere.
And I can't imagine not spending a lot of time with my kids. It's one of the things I think about most. I like to do a lot of things, but they're one of the few things I can always say yes to. I want to take care of them, teach them, learn from them, listen to them, see them grow, whatever. It just feels good to be in their lives. There's nothing unnatural about it.