@panzade,
Panzade,
I agree with you completely that the disparity in schools in economic lines is a real problem in the US. This has long been a problem, and over time has actually been getting better. Look at the data on school attendance rates and literacy rates over the past 100 years if you doubt that.
I disagree completely that US has been slipping in any way.
First of all, what we are measuring is the ability to take standardized tests. This is not actually a very valuable skill in a working world that offers very few standardized tests.
Secondly, even assuming the the tests have any validity to what it means to live a fulfilling and productive life, the scores are slanted by the way the tests are sampled.
But the real point is that people, like you, have been frantically warning about the failing state of the American education system since at least the 1960's.
Yet since that time, products of the American education system have been to the moon, sent robots to mars, invented the internet, taken over world culture with music and movies.
For all the hand-wringing and belly-aching, the American education system has performed remarkably well over the past 50 years.