But I think that the gain from such total de-anonymization is not too great. But the loss of anonymity is theoretically a huge violation of the human right to privacy, which, of course, cannot be completely ignored by the legislators of a civilized country. Therefore, I still have hope that the issue of the absolute legality of anonymous payments in cryptocurrencies will still be resolved somehow.
Well, I guess it is a matter of perspective then. I think you put too much credit on the government, most of them don't care about users' privacy unless they can utilize the same thing that privacy enthusiasts are looking for such as TOR. With the gambling business, or crypto payments that you mentioned above, their priority by nature is different. Most businesses would either follow the requirement, or try to launch overseas where they can also stay anonymous, but then it will be problematic for the users if they decide to scam and so on. At the end of the day, I believe the cost to maintain and filter out people who abuse VPN probably isn't worth the cost, especially if the market for privacy-enthusiast gamblers is small (this is not about allowing payments in crypto to begin with). Even if the government somehow mandates businesses to accept VPN users', I'm pretty sure it will come with other KYC tools in hand. CMIIW.