Obviously, people want now decentralized cryptocurrencies because of there features and now the people don't want to be controlled by the government also.
One more thing this question has been answered much time here search the forum.
Yes we want it to be decentralize becaus eit makes bitcoin safe from hacking and from the greedy people. If bitocin was remain decentralize even government cannot control it. No ome csn manipulate the price of every coin in the market unlike when it was cengralizd it ws like bitcoin was open for the possibility that it can be abuse and not controll in a proper way by a big or. Rich people.