Earlier quoted context omitted.
> to rebuild US healthcare system to look like Canadian or any of the European ones would not be as easy as just public agreeing on something Why not? Canada didn't always have their healthcare system. Canadians just agreed on something and suddenly they had it.
I think the segment on late night TV that I watched used to be called "street walking with jay lenno", or something along those lines. The premise was pretty much: take a question that might sensibly appear on a GED test (highschool graduation equivalency, without the class credits), that probably at least 50% of the viewers (so adults that could afford a TV and stay awake until midnight / had just finished watching…
I get a feeling you think you are one of these voters. But are you, indeed? Are you really sure you can predict the impact of the actions in a system as complex as 300 million people inside trillion dollar economy? Before you answer that, remember that many people with advanced degrees tried and failed to predict things about economy, and even more people with advanced degrees are in constant and complete disagreement about what would be effect of that or this policy and what should be done to achieve this or that effect. And "unintended consequences" appears in virtually every article describing the aftermath of any serious government decision. If all those people aren't really able to figure out how things work, are you confident you are?
> should at least be able to pass an ECON101 test
Why ECON101? That course probably provides very basic knowledge (depending on the curriculum) which is next to useless when dealing with enormous and complex systems because it ignores myriad of details. It's ok for a 101 course, but if after taking this course you think that you know enough to make informed decisions about the whole US economy, then this course actually decreased the amount of your actionable knowledge. And yes, voting is making decisions about the whole US economy, ultimately.
> I would really prefer a local, national, geo-political, basic law, and economics (including some light math) test as a pre-requisite for being able to vote
Are you sure you would pass? What if I will be writing the test and make every effort to make you not pass (you don't think politicians would ignore an opportunity as juicy as disenfranchasing a huge number of their opponents' base?)?
You understand also that making decisions for people that can not vote is the reverse of what representative democracy is, and a just cause for rebellion? If any situation justifies violent overthrowing of a government, it is a situation where the government denies participation in vote to a class of citizens which committed no crime, did nothing wrong but failed to satisfy an arbitrary criteria somebody instituted to not let them vote because they didn't like what they might choose. Who would consider such a government a legitimate one? You probably wouldn't, if you were one of the disenfranchised people. But somehow nobody thinks they will fail the test.