I am aware of what you replied with but it is a bit different from what I stated above. This is not the case of the country of the gambler disallowing him to gamble but the case of the casino restricting the citizen of a certain country from gambling on their platforms.
Casino does not block a gambler because they look at a certain gambler or a citizen of a country, it is always based on the regulation of a certain country that they cannot serve if it's deem illegal to serve that country. Maybe we have different understanding on this matter because personally, I'm a bit confuse because some fo my fellow countrymen says gambling is illegal in our country, but in reality it's not really illegal.
What I believe about the meaning of "gambling is illegal in my country" is that when gambling is totally ban. Not that they allowed some to operate and deny the others.