Well it's true that if a country wants to be draconian against online enterprises they can very well be. For instance, in most developed countries it's easy to play in an online casino that would be considered non-licensed by local laws just by buying crypto and some DNS change. But think about New York for example. New Yorkers have it very hard for them as they have little to no access to legal crypto exchanges. If they have to rely on peer to peer sales that are unreliable and expensive just to load up their casino ballance they might as well succumb to the pressure and only play on whatever licensed app can be offered in their locality.
I assume the same applies for China as well as many other countries where access to crypto purchases for retail investors is very restricted. Europe could be like that at the turn of a switch as well. And if that happens, there's little to no infrastructure to support the purchase of crypto at market prices for individuals. So especially for online casinos I don't think there's going to be a cyberpunk future. If a country wants to restrict access to them regardless of collateral damage they can do it by cutting off the funding methods.
People that have difficulty to access online gambling games will find a way to visits that site and maybe they will use VPN besides change their DNS. But for those who can't use kripto to playing gambling, they can use fiat money in the gambling application that's legal for their country. They can also search for local casino so they can playing gambling without visiting on the online casino. They needs to follow the regulation and they don't have to breaks the rules because that can makes them in a trouble.
People can access crypto easily if they lived in a country that have a strict regulations about crypto. People must search for the way to access crypto and if they wants to invests in crypto, they must knows about the rules before they decides. We don't knows if there are no future for people who lived in that country because maybe there will be a change in the future which allows their people to access crypto easily. That will needs to waits for the time until their government change their regulations about crypto and until that time, their people can only waits.