Earlier quoted context omitted.
> would be highly demoralizing Those people should quit. Sour grapes isn’t an excuse for putting others’ lives at risk.
I don't think active duty special forces can just "quit", can they?
One rather famous example is of a BUD/S (usually called SEAL) selectee who drowned himself. When pulled out of the pool and resuscitated, he apologized and thought he failed out of the selection process. The instructor replied something like "heck no, you passed. We can always teach you how to swim. No one can teach you to never give up".
https://en.wikipedia.org/wiki/United_States_Navy_SEAL_select...