Toushirou has a healthy respect for guts and hard work. He seriously does. But charging in blindly is just stupid and he can't respect that.

An irritated huff. He is done with this. So done. And there's no time to argue. "Well if you're going to insist on being such a dumbass, I guess I have to come along and babysit you."

Yep, babysitting. That's pretty much what he sees this as.