I think easy gambling over the internet is terrible, tons of young people are getting stuck in it. People get addicted to it throughout history and ruin their lives, vulnerable people get in trouble with huge losses.
But I don't think we should do anything because religion doesn't like it - that's a foolish thing to use to make your crucial choices or world view. A key reason is pretty much every terrible thing ever was excused as requirement of some religion or forever. Separate from the hurtful things in religious books at times, it's too easy for leaders or authorities to somehow justify actions.
Let's instead use a goal of treating each other respectfully, stop hating and killing each other. Yeah, that's all naive stuff, we aren't there, maybe we'll never be there. Still a good goal, treat each other with kindness. And yeah, I'm an optimistic sort.
You have cause and effect backwards. I'm saying that it's horrible and toxic for society which is why almost every major religion over every major period of history noticed and banned it.
It's not toxic because religion doesn't like it. Religion doesn't like it because it's toxic.
Religion has been the primary means throughout history by which humans have tried to figure out right and wrong. You can feel however you want about it, but that's just how it's worked. It's basically the ultimate example of Chesterton's fence.
To carry my analogy further, there are many, many, many times where the fence doesn't need to be there or where the fence has outlived its useful purpose. But it's still a good metaphor.