I would not assume that it is impossible. A traditional bank asses risk, and since gambling ventures are considered a high risk venture, they would instead look at you to post collateral for any loan.
Since you are probably outside of US, then yes, it's a possibility, but you would loan money with your own financial identity and assume all liabilities of said loan.
Casino/Gaming or any other business loan without collateral is very hard to get to start up any company. If you loan the money and post collateral, then I don't see why not.
