I think every crypto enthusiast is scared of it,
Who wouldn't be scared when their investment and source of extra income would be illegal on their country?
If that would be illegal, you can still find a way to trade crypto as it's anonymous, you can send it from country where it's legal and let them do the job for you, actually you can always find a way if you are a crypto enthusiast. Maybe I'm just lucky that crypto is legal in our country but I'm pretty sure some other countries where cypto is illegal are still enjoy crypto in ways they can avoid getting caught.
Yes, there's a lot of ways to continue to trade even if the president of your country makes crypto illegal. Aside from sending it from another country, you can also use VPN, though it will be hard to convert it into fiat, the only positive thing is you can hold it until crypto will become legal again in your country.