Since you love using biology as your argument so much, as someone who has a Bachelor's in Science (biology) and a Doctorate (aka, PhD) in Zoology, you have no idea what you're talking about and look like an idiot to anyone who does.

For one, while tangentially related, biology and social science/sociology are two different scientific fields and biology does not innately preclude social science or sociology. I'm going to guess you've never heard the word "preclude" in your life so to simplify: biology doesn't inherently make the science or discoveries in sociology impossible.

Maybe don't argue something you clearly don't understand, unless you want to wear a jester's cap in which case, feel free to keep being a fool.