Bitcoin can't be fixed. The issue that your OP explains in insoluble. You can only hope to replace it. Bitcoin will be scaled up centralized. And it will enslave the world. Period. That is the answer.

I offered another option, but you don't want to discuss it. So end of thread.

The centralized Bitcoin won't be 51% attacked bcz those controlling it will have the 666 control system they designed Bitcoin to accomplish. In the transitionary phase now, the Chinese miners will be handed lots of wealth as the process of centralizing mining proceeds. We can't say every Chinese miner today knows he is part of the ultimate plan. We can't even say the Blockstream devs know they are part of some diabolical plan. They are just trying to fix a design that can't be fixed without restarting from scratch. Compartmentalization is the modus operandi of the DEEP STATE. This is a process. The DEEP STATE that designed Bitcoin has a plan over years.

Our other hope is the system blows up technically. But that is why Blockstream is receiving so much funding, because they probably have the expertise to centralize Bitcoin sufficiently whil still being able to give some illusion of decentralization for sufficient time that Bitcoin maximalists fall into the trap, of which SegWit is a major step in that direction.