I feel this is an "all in, or nothing" type of situation. In order for it to work, all power must be handed over to A.I. at once. There will always be risk of interference as long as there is any kind of human involvement. Stone and Chisel voting narrows down the amount of risk to human interference, any system which enables a more vast amount to partake in, also allows for greater risk.

If majority decide on using the blockchain system, does that eliminate the middle man completely as far as any need for the current government system we have now..voting on certain legislation, only the decision with majority of the votes to be made into law? Would the convenience that such a system would create as far as ease of voting, make it more practicable to force a set amount of citizens to vote?

This article seems to indicate it's possible - and it's most vulnerable on the User's end. You couldn't vote without a password and then what if you shared the password? I don't think it would work. Yes, the Blockchain Can Be Hacked [coincentral.com]

Keep it simple, to vote, you prove you are a citizen and old enough to vote, add the indelible to stop double voting.

Technology sometimes leaves common sense and simplicity behind. The Iraqis did it right in 2005, paper ballots and indelible ink.

I doubt that in the near future we will have sufficient computational capacity to use blockchain effectively for voting.
Also, the energy consumption problem will need to be solved.
[technologyreview.com]

Yes... Although, I think that eventually blockchains will be hacked... It will just be a very difficult process due to the decentralised nature of the nodes which are used to update/verify blockchains.. Hacking a blockchain would require taking control of more than 50% of the nodes in the network.

Yes, and I believe that idea was suggested about a year ago, can't recall the source off hand now.