I think you're on the right path, frelkins, but this?

all these "tests" are highly flawed and biased - they consistently disfavor certain people and favor others.

How does the latter follow at all? If we had a test that measures everything you think constitutes real intelligence, it would consistently disfavor certain people and favor others. It would disfavor stupid people and favor smart people. That's the point of an intelligence test.