Nope. I don't think so. As I can see there are no ways to stop the crypto market because it is very strong in terms of the rate of people who are using it. And most of the feedbacks and news about it os positive and very good. And of course it helps a lot of people in their everyday need in a sense that source of income and earnings.
No other person can interfere in his decisions. The only way to eradicate all digital currencies is to eradicate internet from our globe and this is impossible now. Almost everything is done online and without it, the world will have to reborn.