I'm not sure I can, but let me try. Some of my coworkers will chat to me for five minutes about watching that new Scorsese movie, and maybe make plans to hang out after work. Let's call this Group A. Some other ones will talk to me for twenty minutes about how their kids are really into Frozen 2, and how they dressed up as Elsa for Halloween. They also never have time to hang out. Let's call this Group B.
It so happens that none of the people in Group A have children, and that's really my problem with it. It's not really that I care whether or not anyone has kids (none of my business, really) -- but it seems like the people I overwhelmingly have no interest in listening to or talking with always end up being the ones that have kids. And so I end up wondering if this divide is inevitable, like of your (hah) sibling comments seems to say.
I mean, look, it's possible your world is populated by a discernable "Group B" who "only" talk about kids and "never" hang out after work. But that's not a representative sample. Most of us parents have both lives and kids, and express both in our public lives.
I think if you look harder at your B subjects, you'd probably find that they do the same thing. I bet they talk about their new Teslas, and kitchen renovations, and vacations, and other stuff that you'd be presumptively interested in even as a single person. But because those are "family" activities I'm guessing you're lumping them in with the "kids" bucket and... maybe just refusing to engage a little?
Again, it doesn't make you a bad person to hate kids. But if you do, at least recognize that it is you that is doing the isolation here. Parents are more interesting than you might think.
If I'm insulting anyone, it's only out of genuine concern rather than intent to denigrate. I don't want them waking up one day at 45 realising they've missed their chance and have 40+ long years of emptiness and regret to reflect on their mistake. I don't want them observing the demographic changes around them with overwhelming guilt for their doing nothing.
I want them to experience the joy and fulfilment of family. Parenthood fundamentally changes people. I see it. You do too.
I think what you're saying is that you want us to be interested in different stuff, more along the lines of what you're interested in, because you're not interested in kids. That doesn't sound so much like a social problem to me as a simple personality mismatch.