One brutal approach: let a whole bunch of women through the training, put them all on the same group, and send them all on a real SEAL mission. If any survive the mission, and the mission is a success, then they get to call themselves SEALs.
I know what you’re saying and agree that it would be brutal. But chivalry would always prevent me from doing it. I would be called sexist. So, I’d reply, “we don’t leave anyone behind. And they would be behind before they started.” Whereupon, I’d receive a letter of reprimand to the permanent file and need to plan for exiting uniformed service.
My understanding is that SEAL graduates don’t get their qualification badges (Gold Tridents) until after they’ve actually deployed for a time with an active SEAL Team. Making it through BUD/S and SEAL Infantry Training, difficult as that may be, is not the end of it for an aspiring SEAL-candidate.