I wonder if sufficient investment in Canada would unlock actions to intervene there, given that, much like the Gems, Father has a certain vested interest in ensuring that, say, Vampire Santa isn't delivering presents this year, and the good Santas would probably be willing to overlook his, ah, infractions while he's helping out.
Heck, given frickin Billy was able to make the antidote to his wife's bite, getting him back on side of the good Santas might be a thing Father can do to help swing things in their favor. If nothing else, they'd probably appreciate a roboticist helping out with Robot Santa. Lowering his insanely high standards so he doesn't consider literally everyone naughty to make him more neutral than one of the worst results might be an option as well.
Plus, the Santas might be helpful to Father's character development. Here's the ultimate example of rewarding children for good behavior and punishing bad behavior, after all.