I know plenty of former Marines that hate the Corps, wish they had joined any branch but the Marines, and think former Marines who can't let the Corps go were probably losers when they were in the Corps. The guys that own the Citation I fly are prime examples. Dad was a Marine and told the son to go to any other service. Son joined the Marines not as a generation thing, but because it would piss Dad off. Now that they are Pres & VP of the company they jointly own and they both laugh at the Corps.
Of course I know plenty of the opposite types too.
To each their own. No one will ever win the argument about which service is better. There are plenty of USN, USMC, USAF, USA and USCG guys I have worked with and respect. Each thinks his service is the best. But to say "There are Marines and those that wish they were Marines" is pure bull shit. It's more like "there are Marines and a lot more who are glad they are not Marines".
Plus the best thing about the Marines is that the rest of us get to make fun of them.......