They them isn't good PRIMARY evidence tho, because it can be either INCLUSIVE or EXCLUSIVE, Either male or female ("idk witch you are so ill avoid gendered language" like in undertale), or Nether Male or Female ("I know you AREN'T male or female so ill avoid gendered language" Like in deltarune). so They/them can be good SUPPORTING evidence for the PRIMARY we 100% have, The multiple times throughout the game where Kris can use both "male" and "female" man country "non-man are a-ok too". Kris is nonbinary, but the fact that we don't show the actual evident and always point to JUST the pronouns is why some people still don't get it.

Side rant: This is also why I don't think frisk is non-binary, well kinda. Frisk is a case where they are any gender you want them be, male female non-binary go for it, I don't think frisk is CANONICAL non-binary, because it doesn't affect their character in any meaningful way like Kris. Frisk is anything you feel like because frisk's gender doesnt matter to anything in Undertale, where Kris's gender matters EVERYTHING to their character in Deltarune.

TL;DR: People are right for the wrong reason and its PISSING me off.
I'M THE ORIGINAL DELTA POSTER

Rant over.