The funny thing is that many gamblers blamed everything when they made mistakes. They always find an excuse for their wrongdoing, and the sad thing is, they even include religion. Addiction is not completely related to any belief but rather is a personal choice. Indeed, it was more than that but some kind of mental problem.
I think the saying is right: a gambler never makes mistakes once, but several times. That is why we become addicted due to our wrong approaches and behavior. Which is why we don't have a reason to blame others besides ourselves.