I'm providing solutions to your political woes....but surreptitiously trying to change your political system so it has less affect on us...:O)
But can you see why so many of us are loathe to having any silencing of voice here? With your idea, for example, so many things could go wrong (irrespective of which party is in office, I have this view): We could have some federal agency (likely the Department of Education, or perhaps even the National Science Foundation) take over the standardization of IQ tests. Political influence on the content of that standardized test is easy at that point. Manipulation of it, and badda bing! Continued power is ensured without the will of the people (through our system of still protecting the minorities). With continuing power ensured and silencing of an opposition, we are more than halfway to authoritarian rule.
We don't like that too much, or something that even gives that a chance.