You might want to recheck the list of the countries you claimed gambling is prohibited generally, this is unless you are referring to a certain casino prohibiting those countries which I do not think was what you meant. Take Poland for instance, gambling is not prohibited in Poland and I think we should do a better search before posting than rely on some random web sorting as you furnished us here.

In replying to the whole meaning of your post, I do not think this is an issue. You should choose one of the top sportsbooks like Stake.com to gamble with and ensure that your country is not banned by them, period. If this is done, I do not think you have to worry, and even if your country bans gambling and you are interested in it, just look for the casino/sportsbook that will allow VPN and start gambling with them. It's as simple as that.