If you live in a material universe where acquiring things is very important to you, then family is an absolute deterrent to maintaining that sort of a world, because family involves values like affection, and sympathy, and passion, and types of pleasure that lead nowhere in a material sense.
Klaus Mann saw very clearly how different was his own (more liberated) form of homosexuality from the same-sex attractions of his father - and that is reiterated in TM's diary queries about "how two men can sleep together".