Hacking Block Chain Tech would be discovered quickly in real-time. That keeps the system honest or under a light.
What you are referring to is the hacking of Bitcoin accounts which have nothing to do with the Block-Chain Tech.
If you disagree, post a credible source that shows that hacks to Block-Chain Tech are hidden and not discoverable. You can’t do that because it would be like saying an auto driver can go 120 mph on a freeway without being detected by a team of state troopers who all have a radar gun pointed at the speeding vehicle.
You can say drivers can exceed the speed limit, but you can’t say they exceed the limit and never be detected.
With Block-Chain Tech any cheating is immediately detected.
Somewhere along the lines there won’t be block chain. At that point the system can be hacked. If you go to a national system all you’re doing is making it so that instead of voter having to be done all over the place it’s in one centralized location. Your BEST case scenario is you have a completely hackable voter database that feeds into your supposedly unhackable block chain that feeds into a completely hackable voting count. Even if claims of the perfection of BCT are accurate (not proven) if you feed it garbage in the voter database it doesn’t even need to be hacked, because you’ve setup a system that WELCOMES bad data.