Law, I am completely with you in believing that they abandon their USMC history because they know the Corps wouldn't be proud of them. Mine even left the very expensive bottle of scotch I gave him at his retirement. That is the one thing I don't leave for him when I move out. I earned that bottle just as much as he did!
I think their abandonment of their military career is twofold. Agree that a large part of that is shame and knowing they don't deserve to be called a Marine. When I once questioned mine about why he left his stuff, he said it was because he didn't want to leave empty walls. I knew when he said it he was lying.
But...I also do believe on some level they leave their things as an anchor, essentially wanting us to protect what they once had. I say this because when mine moved out, he took some of his clothes, his stereo, his speakers, two of our old patio chairs, his tool belt, some old dishes, one dish towel, one rag, his favorite towels, and a bottle of ibuprofen. I've thought many times that it's especially weird he abandoned his Mamaluke sword: I was stunned to see it when I came home after he moved. But there is one other thing he took I've always been very, very curious about: a carpet he bought (for me) when he was deployed in Pakistan. Why that? What is the significance? I think I might have figured that one out: during that deployment, he all of a sudden was feeling me about some actress he had met and had dinner with. She had body guards who creeped him out. Every antenna went up, and I believe he had a fling with this woman. I think the carpet represents that. I think it serves as a metaphor of his shame of cheating on me while he was deployed and I was here dealing with a daughter who was getting in all kinds of trouble. I also think it is metaphorical of the Corps because he found out when he was in Pakistan that he had been passed over and was being forced into retirement. Whenever he looks at it, he sees those two things. More interesting about it? That carpet was the biggest one we had. There were a total of 6. He could have taken any of them.
Since I will be making a geographic move (I hope), I will not take his things with me. The way things are working out, I will be gone before he comes to get any of his stuff. But like you, Law! I am proud of our service, and there may be more than a bottle of scotch that winds up coming along to be treasured because it was an important part of my life.
3, military or not, I think all of them do believe they can leave their old life behind, and that includes their things. But, as I said in my earlier post, the threads are so tied together, it's almost impossible to sort any of them out. This is something he said quite a few times to me before he moved out. He was trying, very hard, to disentangle everything and couldn't.
My head is gonna be swirling on this subject for awhile!