The vast majority of the American people went to public schools. They are adequately educated, that is the proof.
Are there school systems that have problems, you bet, but in fact a majority of public school systems do work as designed.
That the vast majority of Americans went to public schools is NOT proof that they obtained their education inside the school.
It is entirely possible that the only thing the government school did was send home a very expensive curriculum that the parents and the child ( himself) followed IN THE HOME. The real learning happened doing after-schooling ( AKA homework).
You are merely assuming that so-called government schools are working. This is **impossible** to determine without carefully evaluating and measuring the knowledge acquired to due the efforts of the parents and child IN THE HOME and though the employment of private tutoring.
My anecdotal observation in my professional practice is that academically successful children ( home or institutionally schooled) are have remarkably similar study habits and home habits. Both spend about the same amount of time IN THE HOME in either homework or home study. There is one difference. The homeschooled child is far less tired.
CORRECT! Socialist-entitlement schools produce voters who are comfortable with socialism. It only took one to three generations of socialist-entitlement schooling to give the nation Woodrow Wilson and two Roosevelts.