By choice he has taken no furniture so he lives in a barren, empty house, with hardly more than a table and bed and his clothes. Your husband has no clue what taking care of himself is about. In his eyes, he doesn't matter, as evidenced by his home, or lack thereof. He needs to learn that he does matter, and that the only one who can give him what he needs internally - is himself. My son and daughter see that and feel sorry for him.
Sympathy is a manipulative ploy that accomplishes nothing constructive.
But, it's the best he can do right now. My parents seem to feel like I am being cold-hearted and stubborn not to see how hard he is trying. He's been working overtime to gain their sympathy too. His energy would be better spent conducting his life in a way that would enhance his self-respect rather than tugging on people's heartstrings. He is not in a good direction.