What you can use elections for is to extort policies from elected officials. The problem is that means being willing to vote for the greater evil if you don't get the things the country needs and our country is unwilling to enter into that mentality.
I think you're missing the point that the actual important policies are not up for debate and are agreed to by both sides before the two winners are picked for us to vote on. All the electorate gets to decide on is meaningless stuff. Both candidates will always want the elimination of privacy, destruction of the middle class, complete subservience to wall street, etc. The electorate gets to decide on unimportant stuff like the skin color of the winner... it doesn't really matter because either winner will implement the same policies, although perhaps with slightly different PR campaigns.
A fundamental impedance mismatch is the public wants/needs policies. However they're only allowed to vote on two hand picked two sides of the same coin "leaders", not the actual policies. The "winner" is the candidate who tells the best lies about policies, which will of course be forgotten after inauguration, and both are going to do the same thing anyway so it doesn't matter very much which wins.
That's why voting is the final act of a series of political actions, and merely should be cast as an up/down "keep this guy" vote without looking too close at the alternatives.
We have to take over the conversation and stop listening to the challenger. The challenger doesn't exist. It is up/down on the incumbent.
I fail to see the point of that. By definition, both the incumbent and the challenger were hired by the same political action committee to achieve the same outcome by using different PR techniques.
Your suggestion is that the general public should slightly modify how they select which lie is told to them. The result will be they'll be lied to slightly differently, and no change in actual outcome.
With enough money, and it'll take a lot of money, the public could purchase their own candidates... That would be interesting, although unlikely. And there's an awful lot of intentional divide and conquer PR work already in place to prevent it.
Once wealth inequality and income inequality exceed a certain level the system spirals out of control until it crashes and reboots. In that scenario the most sensible way to limit total overall human suffering is to floor the accelerator and encourage the process, rather than hold it back, so it crashes quicker and we get back to normalcy sooner. Given that background, a lot of current events suddenly make more sense. Look at federal reserve policy, or pretty much anything in contemporary politics.