The important thing is that in the US, such taxes are being used to make useful contributions to society. The taxes can be called very high, but then the people will receive other better services in return, while in countries like Nigeria, and even in many other countries, this tax money is not intended to fill the treasury to serve the people, it fills the pockets of some corrupt classes. Besides, the governments of these countries are relatively strict and do not create much space for casino owners, it feels like they do not prioritize the gambling industry as a service that should develop when the national financial system does not depend on this industry.
That's where the problem lay and it has even been a thing if concern to citizens too that if such tax is being passed, the government will not still do anything good to improve the state of some sport or gambling activities in the country but rather the money will just go for their selfish interest.
There are many signs that show that Nigeria will never be a better place, and this is one of them, some countries rely heavily on taxes from casinos, I heard that casinos both online and offline generate incomes more than many big businesses in the world today, this is why the U.S will never block the income stream from gambling for the sake of anybody, if you get addicted or lose your life, many citizens will keep benefiting from gambling, either by winning by themselves or their government feeding back the public using the tax money from casinos.
And like youve said, Nigeria government will never use the money for anything good, they will prefer to share the money among themselves, the problem with Nigeria is the Nigerians, even if they are rotating every citizens in Nigeria one after the other they will do the same, I am not bad mouthing this country, sadly it is just what it is.
Nigeria should be one of the biggest holder of Bitcoin as we speak, because of their excess in oil and mineral, they feed other country a stable electricity, meaning they can power Bitcoin mining and make a better country in a matter of 10 to 20 years time, but it seems this is a curse on the country, because everyone seem the same in Nigeria.