We're Ashkenazi Jews, but AFAIK the last time any ancestor of mine practiced a religion was in my great-grandparents' generation. (And then only because I knew only one of them personallyh, so it's reasonable to assume at least one of the others could have been religious.) I get that every human is descended from religious ones, but conflating this datapoint with someone whose actual parents practiced a religion once seems wrong.

Likewise here, the last time my family practiced a religion was when my grandparents were children (my family is also Ashkenazi Jewish). I wasn't raised religious at all, but there was certainly a good deal of cultural effect.