After rereading your article, I can only say that if it was meant as humourous sarcasm, you completely missed the boat. Regardless of whether or not you were serious, there are those parents out there who would express such a desire seriously and mean it wholeheartedly.
As for your belief that the childfree are “militant”…I have an opinion. I express it. Does “your side” not do the same? I could seriously give a crap whether Jane Moo down the street has a child, but the minute it infringes & impedes upon my personal freedom, privacy, and space that’s the minute we have an issue.