Ignoring the fact that there is massive amounts of fraud and room for crime in the crypto currency space by denigrating the opposing viewpoint doesn't progress the conversation and just keeps the tribalism and fighting at the same levels. If you truly believe in crypto currency, why not try to address the concerns and push crypto currency in a direction that would ensure wider adoption?
I guess concerns must be addressed perfectly. Otherwise solution won't stand criticism. For example ransom, if paying ransom is legal, then it's legal, if it's illegal, then it should be reasonably stoppable with police resources as an easy meatspace crime. ICO scam - if you think you can get it wrong, then stay away from it just like you stay away from gambling. Investing everything in a risky asset - this absolutely happens on fiat market, but it's okay there just because.
"massive" is a subjective term. That statement cannot be a 'fact'. Besides, you could apply the same sentiment, as it relates to 'fraud' and 'room for crime', to the Internet in general.
