You’re saying…you’re actually trying to say that any minority is over represented in media. Like, think about that sentence for a few seconds. That any minority could ever be over represented in media.
Looking at USA statistics, from wiki at least, it's saying a little less than 4% of the population are gay.
I don't have any numbers for this part, but I strongly feel they are represented much more in media than just 4% of people in the media. I'm not saying it's bad, not saying it's good, I'm just saying I believe that is what over representation is.
I don't think many people will argue that it is not in fashion today to represent gay people. So many companies seem to be doing it.
Hence Nintendo making this letter public.
Something I believe is UNDER represented is the USA's native/indigenous population... less than 2% of the population sadly, and I hardly come across any in mainstream media.
What this has to do with pokemon... nothing!
GF could create a pokemon that switches genders depending on the day of the week I guess, if they really want to please people.
But for 'nonbinary', as in not 0 or 1, not male or female... as others have mentioned, we already have genderless pokemon.
Metagross is nonbinary, not male, not female, not part of a binary gender system.
Young children probably don't really understand the mechanics of pokemon/genders/ivs/evs etc, no surprise this letter was written in the current climate.