I would ask why it's important for you that the professional you're working with holds the same values that you do. If it doesn't affect their work, then why does it matter what they do in their free time? I'm not asking to be flippant, but perhaps there's something there worth exploring.

I grew up as a liberal in a deeply conservative area, so I'm used to most people feeling differently than I do in this realm. Probably influences my ambivalence here