What does it look like I'm doing?

[Notably, he doesn't loosen his own grip on the demon cat's scruff.]

I'm preventing it from moving.

[Specifically, by attacking its mind instead of its body. Hence the thousand-yard stare the cat's got going on.]

Doesn't the God of Light have some purification power to get rid of demons like we do ayakashi?

[He imagines Sora prancing around in a shoujo costume but doesn't share that detail. Any other day he absolutely would have.]