So the YouTuber is profiting from showing detailed instructions how to crack a device and enabling playing pirated games? Homebrew is nice, but there is no point of cover up with a smokescreen here. This instructions are mainly used as basics to use pirated games. The YouTuber knows this, Nintendo knows this and his viewers know this too. Defending big companies maybe pointless (but it strangely seems some think big companies are always bad, no grey area allowed). But exploiting the work of others like the YouTuber does and profiting from it is nothing good too. It's not about good David against evil Goliath. The YouTuber is a company too if he is profiting from his videos (and some of the "Homebrew" YouTubers are supported by companies that run pirate websites anyway). It's only about two morally wronged parties against each other. There is no point in defending any of those two.