We can acknowledge that there may very well be some average behavioral differences that may be innate to men and women respectively,

Right. On average in some areas.

but it is extremely difficult to separate nature from nurture.

It is difficult I agree.

Sexism is a very likely reason why women are pushed out of certain fields and why pay raises when a field becomes male dominated and falls when it is female dominated. Women's work isn't respected, and it isn't valued.

Yes I think sexism does take over at times. It often is related to rank misogyny.

Telling women they're not succeeding, because they aren't aggressive enough is just more sexism. Many women leave tech and high earning careers, because the bullying & sexual harassment just isn't worth it anymore.

But are we acknowledging that baseline of aggression that men might have?

If a male person behaves in a more stereotypically feminine fashion that does not make that male person a woman, that just means that some male people have personalities that are considered feminine. This proves that feminine and masculine gender roles being innate are bullshit, because if it was there wouldn't be so many exceptions to the rule.

To me though this creates a clash between "acknowledging that there may very well be some average behavioral differences that may be innate to men and women"

and "feminine and masculine gender roles being innate are bullshit"

There is some pattern to some things being innate and some things being cultural.

I understand with things being "bullshit" at times, at the same time I don't see how all of it is going to go away.