“If you run a site that is deemed illegal and live in the US your breaking the law, location of registrar and server has no meaning at all, zero…”
Not Illegal if you are targeting US customers.
It’s not your fault the casino accepts US customers. How are you supposed to know? You dont have access to clientele’s personal info. Lots of Countries speak English. Just cause your site is in English does not mean you are Targeting the US.