[farming pharmer]

transgenderism confirms male supremacy

It does, doesn't it...no matter how repulsive this whole matter is, it reaffirms that:

1) Men are a few points higher in IQ (generally)
2) Men are stronger physically (generally)

[alternatives?]

“1) Men are a few points higher in IQ (generally)”

I think the primary reason is not the average but the standard deviation. Women are more clustered around the mean while men are much more divergent. That means the extreme values (both low and high) are mostly men.