The courts have told us that the NYS cigarette tax cannot be collected from Indian reservation stores because doing so would be “undermining Indian sovereignty”. The whole idea of these reservations not being part of the USA is a separate argument.
Ignore that and assume Indian sovereignty. Why is any money going to these “foreign” countries? Aside from being able to open a new casino and take part in the profits, the only thing the reservations do is keep people on a permanent regimen of government benefits.
Some people have as many cousins as these tribes have members. This is another bad PC joke