I'm confused shouldn't the male counterpart to a witch be either a warlock or a wizard?
I think in most media, yeah, though there's a lore cutscene in the main game that implies he's called that for a different reason.
Iirc Citrine's called a witch since he follows just about all of the usual witch tropes(dark magic, burned at the stake, brewing potions, etc.), and witch wasn't exclusively a female term back in the day anyway.
well most people that were called witches was because they didn't get the plauge, it was due to them owning cats.