A new Netflix documentary takes viewers into “the manosphere,” a loose network of YouTubers, podcasters, live-streamers and online pranksters. Those interviewed in Louis Theroux’s documentary, “Inside the Manosphere,” claim to teach young men how to become dominant, wealthy and irresistible to women. They pitch a specific idea about male worth. Women enter the world with innate value, they say, though they often contradict this by telling their followers to mistreat women. A man must earn his value, the logic goes, through money, sex and status. Otherwise, he is worthless.