There isn't a female in existence that can take it.
I guarantee you that any female assigned to a sub will possess 2 qualities.. She’ll be lesbian, and UGLY AS HELL.
Don’t kid yourself. There are female triathlete types who can get through BUD/S. That’s the wrong approach, to “challenge” women to make it. A few would make it, trust me. The question is more generally about long mission endurance by women other than the top top top .00001%. Once a few of those triathletes break the barrier, affirmative action will come in and the mission will suffer.
(I went through BUD/S class 105, “back when training was training” as they say.)