This triggers thoughts. I don't like people being taken advantage of. At the same time, I like my personal liberties.
It feels like you can spin this idea for nearly anything. Apparently 25% of alcohol sales are to alcoholics. That sucks and you could spin this has the liquor companies taking advantage, but I have tons of friends that enjoy drinking and tons of good experiences drinking with them (wine/beer/cocktails) in all kinds of situations (bars/sports-bars/pubs/parties/bbqs). I don't want that taken away because some people can't control their intake.
Similarly the USA is obese so you could spin every company making fattening foods (chips/dips/bacon/cheese/cookies/sodas/...) as taking advantage (most of my family is obese (T_T)) but at the same time, I enjoy all of those things in moderation and I don't want them taken away because some people can't handle them.
You can try to claim gambling is different, but it is? Should Magic the Gathering be banned (and Yugioh Card,Pokemon Cards, etc..)? Baseball cards? I don't like that video games like Candy Crush apparently make money on "whales" but I also don't want people that can control their spending and have some fun to be banned from having that fun because a few people can't control themselves.
I don't have a solution, but at the moment I'd choose personal liberties over nannying everyone.