You need to look at both ends. If there are countries that is against crypto, there will be some who will be on the opposite side like Japan and others who decided to embrace it. So it will be a continued and a long war to fight but there will be no winner here. This will be drag for several years and I'm sure that we can all survived from all kinds of attacks.

Of course the price will be significantly affected just like we are witnessing right now. But I don't think that they can really stop crypto. Each country will have its own legality as to how they are going to handle it. And I don't think that a "universal law" can be applied to cryptos. Let each nation decide for itself.