Let them in the SEALs if they desire but don't change one iota of training.
No 'shame' if they wash out, many men do (as well as in Submarine Service, Special Forces, Airborne, Recon, Force Recon etc)
While realizing that ALL the features that came with UDT training may be outdated or outmoded today, it has to be DIFFICULT, mentally, intelligently and physically, not watered down so as to allow 'others' to join. You can't afford 'slackers' or dummys when in 'Indian Country' and it is just the 5 or 6 of you against thousands..You look out for each others back BUT you can't 'baby sit' them or hold their hand.(figuratively). The Black Guys in your outfit may not like being called 'N', the women(?) not like being called a 'C' or the 'do funnies' being called a 'CS' etc, if the enemy captures you that will be the least of your problems.
Also make sure the PYSCH test is VERY DIFFICULT.
If your tender 'ego' can't stand a pat on the rear, some one yelling at you, physical abuse in training, someone calling you dear, honey, baby, making sexual innuendos, then MAYBE, just MAYBE you are not ready to be captured by a hostile 'other guy' that is trying to kill you or obtain information from you or just wanted to screw you.
That standard should be a prerequisite for a MALE or FEMALE, as the bottom line (hostile 'other guy') is the same.
Like George C. Scott (as Gen Patton was quoted Maybe??) No man ever won a war by dying for his country. Wars were won by making the other poor bastard die for his.
Patton probably didn't say it BUT it is a good line.
Patton did say - and he had MANY gems
"You can't run an army without profanity; and it has to be eloquent profanity. An army without profanity couldn't fight its way out of a piss-soaked paper bag."
Of course Patton did not realize he was actually offending God and worsening his chances. Many people scoff at godly virtue. But it wasn’t cussing that braved the lions.