~snip~
In a religious point of view it is. However, gambling has been part of our culture and daily lives and also it is a big business industry which I think helps the economy. Even some big casinos help charities and foes their social responsibility. So, I think it depends on what view are you looking at gambling.
This will be depending on which country and what community youre living mate because there are countries that consider gambling is really illegal so thats another story
And there are community as well that treat gambling as part of their daily living,so in which you live theres appropriate treatment for gambling
So from that you will differentiate if gambling money is dirty or not