He very nearly pointed out that the 'raise a demon' thing fit right into her 'demon cultists babies' theory. But he decided not to say that.

Then he decided to say it anyway. "Until the lady has a bun in the oven, waiting for the day to become a big bad cultist, right? That's the theory, anyway."

He didn't even understand the concept fully. It was just enough that he could use it to make himself appear right.