That makes a lot of sense to me. If a sexual - or other - obsession seriously disrupts one's life then, yes, that may be a problem. But if somebody merely has a kink, however intensely experienced, that does no harm to others or themselves, I really see no problem. The medical profession, of course, has a long history of 'pathologizing' behaviours outside the mainstream, conceived by the 'experts' as normal'.
I wonder, however, how married couples come to terms with a fetish - e.g. some aspect of pee - when one partner doesn't share that fetish and may, in fact, be repelled by it. That