Our entire way we see whether someone is Jewish or not isn’t biological or biblical. The Torah says everything first in Zachar.. Cuz the Zachar by nature is the lineage of things, Zachar always comes first to encompass the whole. Just because rabbanim made some form of chazaka that now it goes by the mother it doesn’t change biology or reality. Men pass on whether your a Cohen or not right? How? Actually men are responsible for the child’s gender too. And I’m sure other things. If men can pass on lineage, biologically they should pass on also whether your Jewish or not. According to nature…
