I have a slightly different view in terms of centralized and decentralized, first I want to say that there is no single token/coin that is not controlled in cryptocurrency, all hold on centralized systems, only different methods between centralized and decentralized, secondly, blockchain is data storage The biggest ever created, with the blockchain system we can store data in the form of complex algorithms, what needs to be understood is that the creators of these algorithms must have the ability to control the algorithms they make.
third, the death of several altcoins, the fall of ETH and rising prices for bitcoin is inseparable from the influence of using the parent blockchain, so I think centralized or not centralized is just a term, because after 2017 we begin to understand that there is something/someone who manages blockchain-based cryptocurrency. Do you agree?
There is always something that manages the blockchain based cryptocurrency. It is no news, it has been known eversince and it is coded on the system. The thing about decentralized and centralized is the direct participation of people managing that cryptocurrency. Bitcoin had been managed by something and of course managed by a large number of group of people (nodes, miners and developers) in different stations and country making it decentralized. While centralized cryptocurrency is only managed by a few individual and commanded by them on both the decision making, management and development path.