The crypto market is still very small, so it's inevitable that big players still have a lot of control.
In forex this does not happen, and the oscillations are always minimal.
However, it becomes increasingly difficult, so it seems to me that the market has been more stable in recent times.
The problem is that the whales are becoming bigger by the day and not smaller it does not matter if bitcoin is worth one dollar or one hundred thousand dollars you are still holding one bitcoin, and the whales are not holding fiat but bitcoin so they can manipulate the market and the amount of manipulation they can exert right now will be the same in the future.