Your value prop has to outweigh the potential negatives or there is no value prop. What OP is saying is that you can't have unregulated markets in this space the incentives to cheat are too great.
Suppose I were to say "Elbonia is a dangerous lawless country, where corruption abounds and you're not safe on the streets," and you were to respond by saying "There's nothing inherent to Elbonia to create those conditions except the lack of laws against corruption or mugging. And corruption and mugging happen in the US, too, and you'd see more of it if there weren't any laws against it. There's nothing about the Elbonians as a people that makes them more inclined to crime."
I would respond by saying "Thank you for proving my point that Elbonia is a dangerous place."
What message do you think I'm trying to say? I'm certainly not claiming crypto is free of scams and self dealings.