Market manipulation can lead to a volatile market. It is not a given. My view is that the greater size market, both in terms of capital investment and the numbers of investors, the harder it will be for the price to be manipulated. Its not rocket science what I am saying. I'm using money markets as an example. So vast, and wielding is the international global financial system, only entities such as CB and governments have the wherewithal to manipulate the prices as they are being manipulated.
That is not the case for bitcoin. We can see the impact that someone like Musk can have from his comments, inducing higher levels of volatility in bitcoin market than say the volatility of the Telsa market price, following his comments that it was overpriced.
Volatility does not originate solely from manipulation, or attempted manipulation. It can occur for many reasons.