The presence of bitcoin certainly gives freedom to anyone to use bitcoin, even for criminal activities and transactions, but I think this is not a bitcoin error but from people who use bitcoin.
For me there are some point that criminality and bitcoin can do together by many criminals in this wolrd, and we also know that bitcoin is open for everyone, so for me it has a chance that in the future many criminals is we will learn to used bitcoin for doing illegal transaction.
I don't think that cryptocurrency is reason of it because it happen before cryptocurrency as well. we can not stop crime and money laundering. Criminals are not stupid people, they are complacent with their communications and use it to harm others, criminals are always looking for and using anything, bitcoin is an example, Although bitcoins bring a lot of benefits to our lives, they also benefit criminals.