I don't understand the title
"What they aren't telling you about the blockchain"
But... Everyone is saying that
That's the main reason blockchain exists!
That's to issue the power and control of currency to the people.
Oh it's nothing magical. The problem of decentralization are numerous because decentralization means the lack of control by any global entity. You can spit on governments as much as you want but they are the ground of numerous processes much more efficient that anything created by individuals: education, health, transports...
But yeah of course the goal is to get rid of the banks in the end ^^
I don't think everyone is... especially with all the new people arriving in the community.
Government processes are about 1/3 as efficient as its private counterparts. This has been proven over and over again.
They just make it seem otherwise by printing the money to pay for it and pushing inflation.