I think the legs and ring-knockers have been jealous of SF since Nam. Unconventional warriors don’t fit the profile or paradigm of the typical soldier. SF soldiers are more flexible and possess the ability to think outside the box. They have to be able to communicate effectively with indigenous forces which involves being able to understand, empathize and motivate them to perform on the battlefield. Navy and Marine Corps special operators are really commandos and shock troops and are not trained for counterinsurgency missions like Army SF.
Heck, I knew (one of the few) Academy grads that was active SF for a few years. He, literally, was not welcome at ‘ring knocker’ gatherings.
Knew another one, a ‘plank holder’ platoon leader at the 1/75th who was barely tolerated by his ex-classmates.
A Ranger Tab is OK with the boys of the Long Grey Line, but you better not think of actually doing it for a living and still be a part of their club.