I, for one, wasn't hiding my kids at home as you advocate.
To be so vehement in your chastising of public schools you appear to be very weak of faith. IMHO
We mustn't chastise homeschoolers as hiding. I do believe in some cases it is a viable choice (I have seen good and bad examples). Yes, the chastising does mean an attitude of "giving up" to an extent. As a public school teacher, however, I will never give up in trying to make some small difference for the better in my students' lives. All souls are precious. I don't think I have any real talents, but the Savior did command us to share them. With the miracles that I have seen happen in my classroom and others (not really due to me in my estimation), it is indeed a good use of my time.
"We mustn't chastise homeschoolers as hiding."
Nothing wrong with homeschooling. It's homeschooling and then not participating in the public school system which is taking their money to, in some cases, use it for a flawed system.
Sitting at home on FR bitc*ing about doesn't solve the problems. Hence, I'll hide my kid at home, you take my tax money and spend it anyway you want and I'll complain to people who can do nothing about it. LOL