How is that different to a bucket shop? https://en.wikipedia.org/wiki/Bucket_shop_(stock_market)
But they're absolutely not fraud or "fake stocks".
So if what this is doing isn't any different than a bucket shop... I think we'll see the same outcome.
Of course this doesn't address contracts being written out of Russia or traditional financial havens, but how valuable is a vehicle which can't be used to move assets into or within the US or Europe?
I think the question of enforcement is the wrong one.
Esp for chain running evm compatible contracts that are more scalable than ethereum and can have millions of ephemeral validator nodes.