That's what I have been saying to the friends of mine that are overhyping bitcoin, knowing that there is a limitation, I just accept the fact that there are some things that are unachievable to bitcoin, like what OP says about the collapse of central banks, it will be difficult for bitcoin to suddenly fill the void of a central bank collapse, it is not just possible, it is like pulling out a Red Wood tree and replacing it with a sapling hoping to create the same shade. I do agree with you regarding the power of governments but I would like to correct it to fit the situation, do not underestimate the power of the 1%, the people that pulls the string behind the curtain. They know how to subdue something that will threat their seat of power and the only thing that can defeat them is if all the puppets have turned against the puppet master.