There is only one question.. if they all decide to do exactly the same, then a lot of people will try to figure out how the hell to try to use it.

Anyway, we are going to find a way out to keep using bitcoin or cryptocurrencies, just like it is happening right now.

The American people who is not allowed to invest in ICO's, are still doing it so by other ways, there is always a path to still do it, so i do not understand why you are really asking that.