Just as we ban or should ban completely rigged televised gambling games, we should ban pyramid schemes such as bitcoin. It's not because people like the rush and addiction of gambling that we should just leave it be. People are being taken advantage of and doing nothing about it is immoral.

To advance as a human species, there needs to be an environment of equal opportunities (not equal outcomes) where everyone can lead a fruitful and satisfying life, devoid of pyramid schemes preying on the hopes of someday making it. In that sense, cryptocurrencies are not helping but exacerbating the problem.