The EU is already in charge of killing everything that can bring growth and expelling it from there.
EU is governed by bureaucrats and for bureaucrats it is only natural to stifle innovation and growth, because innovations cause changes and changes are what bureaucrats hate the most.
So they will continue killing cryptocurrencies by overregulating them to the point where it is easier to use fiat instead of crypto.
I personally think everything can be managed by the EU. Such as killing any cryptocurrencies. Can use something else without killing it again.