Welcome to reality, where good/neutral things sometimes are used for bad :) Name one financial system that doesn't have any elements of criminality involved in them.
> Its only real use case still is enabling illegal transactions and evading financial regulations, and that maintains its speculative value
So if I and others happen to have done at least one transaction with Bitcoin that wasn't illegal or evaded financial regulations, would presenting proof of that leading to you changing your view that there is no real use cases?
> that's still a scam not a true investment
Personally I draw the limit of what a "scam" is when it's intentionally misleading with the purpose of defrauding you. Bitcoin doesn't look like it's either of those things, but I will agree that the ecosystem has a lot of scammers within it, just like any financial system.