You don't need to speak Latin to notice common roots and get a gist for what a term means.

If you're actually in a position where it's useful to distinguish one type of dementia from another, having a meaning that's linked to what the symptoms are may help you remember both name and symptoms.

If you're not a medical professional, remembering either name or symptoms for specific types of dementia is unlikely to be useful.

I don't use any of the emoji that could have a skin tone. I will occasionally use emoji, but don't find that the faces or hands are useful.

I'm not sure why the need to draw a firm distinction between the two. I'm quite focused on lyrics if they're present and in a language I understand. I'm not fussed if they aren't.

If you find the music in some way engaging, that's enough. Denigrating other music as in some way lesser than your preferred genre is odd.