9-1 teacher ratio is likely in the top 1% nationally.
But... stupid in, stupid out. Can’t get away from IQ.
Look at the nation by nation map of IQ here and see what these teachers are fighting:
https://iq-research.info/en/page/average-iq-by-country
Now rework the numbers and remove the (ahem) “cohort” whose average IQ is one standard deviation below the mean of the rest of the US population and understand why “racism” has nothing to do with why this (ahem) “cohort” cannot function in an advanced technological society.