RMS is a stellar example of why we should avoid falling into the genetic fallacy[1]. Yes he is stupid about inter-sexual relations and sexual relations in general. But I don't look to RMS for dating or sex advice and neither should anyone else. Contrarily, just because he's stupid about some things doesn't mean we shouldn't listen to him in the domains where he's literally a genius[2], like software and information freedom.

[1] https://en.wikipedia.org/wiki/Genetic_fallacy

[2] Genius in the seminal sense.