Are they willing and open to
counseling with him? Cutting him off will not cure
his depression, but make it worse. He needs family support. Maybe if the whole family went to counseling with him? But by him laying around, not working, letting them support him, that is not helping him either. He needs a job so he will feel he is making a difference and give him some confidence in himself. If he cannot find a job maybe he could volunteer helping others.