Forgive me, but your statement doesn't make any sense at all. What did Don-o's post have to do with "ownership of eternal life"?
I suspect that you don't really understand what he was talking about and I further suspect that you haven't ever been nearer to the Marine Corps than seeing a couple of bumper stickers. Just a guess, mind you.
Someone’s claiming the literal “Semper” in the motto. I live with a Marine (ex Marine if you are of that ilk, it was an honorable discharge) and he’d laugh too at the idea that Marinehood carries into heaven’s streets, as it would have to be if Semper was so literal. I take it as the normal meaning, i.e. while you’re enlisted. They can’t retroactively cancel the service record of a retired or honorable discharged Marine who misbehaves, as shameful as such misbehavior might be (of all people they ought to know it’s wrong).