There is no good answer to that question. Too many don't understand the importance of context/intention, and unfortunately they are also the same ones that get easily offended on behalf of everyone else. Part of the "but, the discussion should be more about meeee, and my feelings, and how offended I am"-mindset.

Which is why "kid cosplaying as early days MJ" manages to offend anyone. Why you cannot watch the Community episode on D&D. Why they likely wouldn't dare make Tropic Thunder today. Why many git-branches are renamed to main, etc, ad nauseum.

Even though unicode group could (and IMO should) define all things useful, I don't see why "male-genitals-flaccid", and variations, couldn't be specified. Doesn't require any application level visual implementation. But those that do, and have good reason to, can use a specification, rather than make up their own. Not really a big deal, of course.

If you can have

"1F646 🙆 face with "ok" gesture, described as a person with arms raised above the head forming a "circle", interpreted as "OK sign" (derived from the Japanese gesture for "OK"). Intended as gender-neutral but represented as a woman on most platforms

Just, throw in a penis or two. It's... fine