>Among Americans under 50 without children, 57% said they simply didn’t want kids

Your 57% lacks relevance to the current conversation because it is 57% of a small percentage of Americans.

42 to 43% of Americans are either under 18 or a parent of an under-18-yo. Plus of course some outside that group will soon become parents. And some are empty-nesters who prefer to keep on living in the neighborhood they lived in when they were raising their children.