be manipulate, when these coin are well distributed and decentralized?
Some people still believe that news can be used to manipulate the market. Example is if the United States SEC X account that was compromised could have been actually done by someone intentionally. The aim of the person could be to manipulate the crypto market. But aside that, I do not know how bitcoin price can be manipulated because having a marketcap of over $1 trillion is not a joke. Manipulation is almost impossible unlike on low marketcap coins.
The media plays on everyone's speculation which eventually creates a kind of price manipulation in the market. But once again the context of manipulation can differ in opinion, sometimes we consider it manipulation because it has pressure on the assets owned, therefore as a holder the thing I avoid the most is reacting to information that risks making your grip unbalanced. In any case, information is a weapon that has an important role, in today era you don't need to cause destruction with weapons because with any information it can be manipulated including in the crypto market which relies on speculation that can be obtained by anyone.