GDP size: $105 trillion
Percentage of the world GDP linked to criminal activities: 3% to 5% of the GDP (CIA official factbook).
We're talking $3 to $5 TRILLION linked to criminal activities.
Cryptocurrencies do not even register.
Highly convenient scapegoat though.
Crime, money laundering, fraud, ponzi, etc. all existed long before Satoshi created Bitcoin.
Back to the $3 to $5 trillion linked to crime: KYC/AML brings back about $12 billion per year.
A rounding error.