I agree with you both, don't get me wrong. In reality, I find the idea completely unworkable and impossible to implement as you both point out it would be heavily politicized. At all your questions
@Don't Kill Bill , I do not have an answer and they are all key questions.
But I truly think that they are many rights that you have to earn that right also. As mentioned, the right to drive, also the right to bear arms, the right of being a judge, etc. Everybody has the right of them, but you need to earn that right.
For the sake of discussing: One simple option would be that if you go to the booth to vote, they ask you 10 random easy questions about the program of the party that you want to vote and if you don't get a decided percentage, you can't vote? AI generated questions? maybe an external commission that oversee the elections decides the questions?
I think that some people don't even know what they are voting for. Maybe it would not change much, but marginally could have an effect
But yes, will never happen and definitely there are many concerns that it could be a pervasive system, but maybe less pervasive than the current bipartidism system