Do you think all the time there are people that loves to buy? Do you think that there are people that loves to sell? You don't understand what I'm pointing out with its decentralization and I agree there is something to do with buyers and sellers but I'm talking about the decentralization.
When you have many millions of people trading, yes obviously there is always someone (+bots) to buy & sell.
A few whales just wouldn't be able to manipulate the EUR/USD pair like they can for most crypto. And that's certainly not because "governments" would prevent them to. Sure, market manipulation also happens to be illegal, but you also have no idea how much money (& how much media brainwashing) would be required to manipulate the EUR/USD pair. Because it's waaaay too big.
I don't know how you did come up with this idea of pump and dump scenario, its given to different types of market there are people who would love to pump their shit but I'm only pointing out with decentralization.
What's your definition of stability? Pump & dump is pretty much the definition of unstability.