Is it canon that Kankri uses Social Justice to hide that fact that he doesn't care, or is that Fannon?

He doesn’t care about the real issues, that’s canon. Whenever Porrim brings up gender roles Kankri dismisses it as distracting from whatever topic he’s blabbing about whether that be warm-identifying physically-cooler castes or pale aromantic, panquadrant demiromantic, something in the gray palesexual department or such