"unpopular opinion"

Actually, the theory that porn or dolls or whatever is some sort of outlet which reduces crime is *anything* but an unpopular opinion. I'm not even kidding when I say that I've heard it from a number of people in private. They didn't get it from me either. And yes, from conservatives.

What someone might mean is that there are a few people on social media (with narcissistic traits) who performatively say the opposite.

Intuitively though, this crime reduction theory would make sense to someone, and there are piles of evidence which someone could interpret that way. It's not surprising that it keeps coming up.

The ironic thing about "unpopular opinions" is that they can actually be quite common.