I can't tell you how many times I've been immediately labeled as child hating because I don't want kids.
We are always more than willing to have our friends bring their kids over - they keep the dog distracted :) - or bring them on hikes, etc. with us. I have also been volunteering at the local ice arenas teaching youth hockey and learn to skate programs and it's something I look forward to doing for a long time as it brings me happiness. The idea that I embody r/childfree because I don't want kids of my own is wild to me.
There is, for sure, a cult-like approach from both extremes.