Do not need to rediscover anything.
First, schools in the USA used to be good. One option is to go back to the very old academic program, very very old
Second, there are plenty of schools abroad that are better than the schools in USA. We can study them and implement what they are doing with some modifications.
Both of the above will involve very competent teachers, not the ones that are there to brain wash and promote their personal values, but the ones who know the subjects that they are teaching and actually have a talent to teach.