The truth does not depend on the observer, but the data observed does, very much so, depend on the observer. Especially when the device capturing and interpreting the data is as messy as a human brain, two observers looking at the same situation can come away with very different impressions.

I missed this:

On the contrary, if your team is bad at rationality, that is evidence for it being wrong.

This is what I was referring to:

Someone once said, "Not all conservatives are stupid, but most stupid people are conservatives." If you cannot place yourself in a state of mind where this statement, true or false, seems completely irrelevant as a critique of conservatism, you are not ready to think rationally about politics.

The fact that there are postmodernist feminists is completely irrelevant.