>We are adults, and we should be able to gamble on whatever the hell we want - even if you don't like it.
No. That's not how society works. Prediction markets have externalities that affect all of us.
If you want to gamble, you should be allow to do it in a small setting, on games that have no effect on the greater society.
Again, you are imposing your world view onto others. You should be able to do it however the hell you want. I don’t like gambling, and I don’t like many other things, but that is why we are all different and have agency. Accountability is a different argument, but gambling? Please.
I'm sure you've be entirely fine with me and a few friends placing wagers whether or not your house burns down next month. Nothing illegal of course, just hundreds of thousands of dollars wagered on whether or not your house burns to the ground for any reason.
Unregulated gambling has very obvious externalities. Don't insult our intelligence by suggesting it doesn't.