Hey. All states are trying to understand how this is for them, for the financial scheme of this particular state. Some simply close, others study and some completely accept. The fear that money moves uncontrollably and not transparently - greatly undermines the system of financial institutions.
A little time will pass and laws will be passed, they will not disappear any more, no matter how afraid they are, they can not stop the crypt.
Everything can be dangerous once you used it in a bad way, so if the cryptocurrency used as a tool for a crime then possible to make it a dangerous one. Like in some site that crypto is used as payment for doing transaction like buying drugs, weapon or anything that illegal. And i think crypto industry cannot avoid those illegal transaction to used crypto as tool for payment, that is one of the reason why want government to control crypto.