While consumption may incentivize production, reducing supply does not affect demand. Why would you assume that people slipping the "real thing" would be a pro

While consumption may incentivize production, reducing supply does not affect demand. Why would you assume that people slipping the "real thing" would be a problem? We watch violent movies for entertainment, and some will enjoy /r/WatchPeopleDie, but the latter will always be niche, and intentional production of such clips is still illegal. I do not see the benefit of outlawing artificial depictions.