Actually, Elizabeth Warren and Ketanji Brown Jackson, products of your vaulted public schools, are screeching about it last time I looked.
I am a product of public schools (of long ago) that were very good and have been a lifelong educator. The difference is that when I was in school (and we had plenty of poor people and none more than middle class) ALL were expected to perform. If you did not, you stayed and worked until you did. No one was entitled to anything -- as some earlier poster said, those things were hung on the coathook.
We are now struggling through the greatest diminution of meritocracy of my lifetime and perhaps of history. We have switched accepting medical students from ability to learn and ability to understand the meaning of being called/putting patients first to demographic and SJW scores. After protestations that this would all be fine...it wasn't (shocked, I know) so all medical schools are now pass/fail. And then because national boards showed how bad it all had become, they just went to pass/fail as well.
The abolition of meritocracy for a boatload of excuses (same ones in K-12 as in higher ed) is foundational to all other problems. What giving people a choice will do is allow them to opt for meritocracy -- and most people of any color and socioeconomic class will do so. If it is best in the public schools -- THEY WILL CHOOSE THEM. If it is not, you are hoist by your own petard. This does not seem to me to be hard to understand. People like homeschools primarily because they are generally learning meritocracy focused. If the public schools stopped making excuses and ran like they did when I attended, the carping would stop. Until then, Gato is completely correct, I believe.