You may want to revise this:
VPN friendly sites
BitCasino.io (review) – Casino and dice.
According to our T&C we do not allow any 3rd party software for location masking.
Anyway, there are lots of online casinos there in the US, and you can pay with visa. Just hodl your crypto and play with fiat, so you don't have to risk your gambling account because of location/VPN.