You can't make him stop doing this. The only thing you can do to get in his way is by making a better product that sells better than his.
Trying to stop him would be bad, but making fun of him is fair game. Sure, he's within his rights to do this, and people are within their rights to pay if they want. However, it remains pretentious twaddle to pretend that cheap camera + CLA + a bit of veneer = precious object. And we are within our rights to say so.