The sound argument in favour of gambling is simple: it's fun, and people enjoy it.
It's not "rigged", everyone involved understands the game. I hand over money, the house takes some, in return I get an enjoyable experience.
Personally online casino is a bit of a mystery to me, but I enjoy a visit to a real casino once or twice a year; it's fun to sit at the roulette table pretending to be James Bond for an evening. An afternoon at a racecourse is a great day out, and betting on sports makes watching the event more fun. Hell, even Bingo can be fun with the right company.
I am capable of doing all those things without bankrupting myself because I am a perfectly normal person. That a few inadequates are not capable of that is not an argument for banning it for everyone, it's an argument for having a properly regulated industry that protects idiots from themselves while allowing the vast majority to make their own decisions.
Gambling is fundamentally rigged. It's a mathematical tax on society and should be banned all together.
The only sound argument in favor of gambling I ever heard is the prediction market one where gambling inputs generate data on public census. I'm not particularly sold on that but other types of gambling like sports don't event have this leg to stand on.
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