We have forgotten the deeper reasons that certain things were prohibited or discouraged, assuming that these rules were only there because of a belief in a religion society doesn’t follow anymore. That was a naive view and it turns out that many “old” rules are actually pragmatic social codes disguised as beliefs. This isn’t limited to a particular tradition, either: pretty much every major religion has frowned upon things like gambling.
And so in the absence of any real coherent philosophy that aims to deal with complex problems like gambling, addiction, or excessive interest rates, you’re only going to get an expansion of what is already dominant: markets.
Don’t expect this to change until knowledge of ethics and philosophy becomes widespread enough to establish a new mental model for thinking about these issues.
The only working moral on this mortal coil is a dose of empathy for your fellow human (and if you can bring yourself to it: your fellow animal). It doesn't require a new mental model, just proper stewardship.
The Quran, which id consider among those as a "Holy book" condemns gambling pretty outright multiple times.