And evil Undyne is like:

“I am straight and have both eyes with a love for human children and Hotland is my home”

Evil Alphys:

"I'm also straight and not only that but I hate anime and I didn't build a human killing robot or melt a bunch of innocent monsters"

Evil flowey: THESE ARE DEATH PELLETS- jk! They are health pelets! They make you happy!

Yes

Evil sans: I'm a human and I make good jokes and I hate my brother and love humans!

Chara and Frisk: WHY IS EVERYONE OPPOSITE