Yeah these studies don’t in any way substantiate the conclusion, “You can thank animal protein/dairy for this.” That’s a gross misunderstanding of the actual conclusions drawn in each of them. That Healthline article also draws/implies false conclusions from the studies it cites.
I’m citing zero evidence here, but what has changed over time (meat and dairy have been consumed and in some cases even heavily relied upon for tens of thousands of years) is exposure to the plastics and other petroleum derivatives that now pervade our environments.