I could absolutely see it having a genetic component, but without data to support it I'm not going to start suggesting policy (even if policy was my area!). If we could prove it was genetic then we could start putting policies in place that treat gambling as what it is, predatory, and have an unassailable reason to not tolerate its current place in our society.

I have nothing moral against gambling in and of itself but I do have something against preying on our people.