How can gambling be seen as an entertainment to someone that is already addicted in it, such person will only be focused on how he can make money and take advantage of playing games without thinking it twice even if you can maneuver his way to override the normal standard, just to ensure he wins, except for those that don't have the same approach with gambling and run after winning.
It's not only people who are addicted to gambling that don't see gambling as an entertainment, there are people who believes that gambling isn't an entertainment, and there's nothing you will tell them that will make them to see gambling as an entertainment because they already have the conviction that gambling isn't for entertainment but as a way of making profits.
seeing gambling as a means of entertainment or as a means of making profit doesn't change the narrative of been addicted. Those that see gambling as means of entertainment can be addicted likewise also those that see it as means of making money. However there is tendency that those that see it as a means of making profit can easily be addicted to it but it doesn't mean seeing gambling as a means of entertainment means that the person can't be addicted.