[palmer]

I will explain it againL your premise was wrong, there is no hackable central computer handing out private keys or any other voting authority to individuals. Instead there is a central authority deciding on citizenship and other eligibility because there has to be. That can be completely manual and not hackable although still defraudable as you pointed out. Also any individual voter can be hacked and/or lose their private key and right to vote, or have their voting right stolen. But that is a much smaller problem than a central hack.

The block chain system will allow 1 hacker

Not true. The block chain is a distributed transaction ledger. You are given permission to vote once with a transaction if you passed the registration. When you vote you sign a voting transaction with your private key. No private key, no vote. The ledger cannot be faked, hacked, destroyed, and is relatively immune to denial of service.

The nicest part is all permission granting and all votes are recorded forever in a ledger that cannot be faked in any way. Any fraud in the voting will be detectable by anyone (registration fraud being a separate issue, not solved by this tech).

[discostu]

Repeating yourself doesn’t make you right, it just makes you redundant. There’s still the burning question you’ve avoided asking over and over and over which shows your whole is completely flawed and thoroughly unworkable:
How will you establish that the person is who they say they are
And who they say they are is a valid voter in the election

Until you can solve those problems everything else about the system is complete junk and utterly worthless. A total non-starter.