If the sex worker is consenting without duress and is being treated well (I recognize that's a big 'if') then I'm fine with it. I have no inherent objections to sex work itself so it would feel like a double standard to judge the people who use it.
Unfortunately the moral waters are muddied by the rampant trafficking, drug abuse, etc. within the industry.
Yuzu is an emulator. You don't need a physical console to use it, unless you insist on dumping your own firmware/roms/keys.
Modding actual switch hardware is certainly more involved. Those rcm jigs are annoying, and later revisions require a modchip which is not an easy install.