There has never been a gambling prohibition as far as I’m aware - so I won’t address an imaginary argument. Hope that helps. However, an astute reader would realize that there have been multiple other attempts at prohibiting “vices” that have failed in spectacular fashion. I trust you can do your own research here and don’t need to belabor that point.

On gambling prohibitions though - one local one I can think of is the CA gambling market. California has decided most forms of online gambling are “illegal,” (except the ones that have successfully lobbied for it), yet it is not enforced at all, only on corporate sites, which creates a massive black market that actually causes far more exposure to harm to consumers than legalization would. This isn’t a novel argument, it’s been debated for 20+ years and the results are pretty clear. I understand however people don’t seek nuance in these arguments and if your stance is “GAMBLING == BAD” I really don’t have much else to say here.