"Whether a crypto is built with non-scammy intentions has little bearing on whether it is used as the vehicle for scams."
Many things can be used as a vehicle to scam to varying degrees, to say that cryptocurrency is inherently a scam in and of itself, is not accurate, as it certainly has non-scam use cases, just like non-cryptocurrencies.
I'm happy to debate, but I don't think either of us are wrong so far, as what you said and what I said are both not mutually exclusive. But if you are asserting that cryptocurrency is in and of itself a scam, I'm happy to have a healthy debate.