It's been much longer than that!
The first socialist government schools opened in the mid-1850s to early 1900s. At best they offered up a lukewarm and generic Protestantism. We know what Christ does with the lukewarm. He spits them out of His mouth!
My paternal grandmother attended secular socialist schools. She was born in 1894. There was a HUGE difference between her secular government schooling and the Catholic education of my Catholic grandparents and mother.
Art. 3. Religion, morality, and knowledge, being necessary to good government and the happiness of mankind, schools and the means of education shall forever be encouraged.
I agree in principle that home schooling or religious schools are better. And I do have big problems with modern public schools in general, and some issues with my district in particular, but wholesale abandonment of the public schools by Christians is not the answer. In some cases, it simply isn't possible due to specific circumstances.
With any school, parents have to hold their teachers and school systems to account. That begins with the Board of Education, which we the voters elect. Keep the curriculum focused on fundamentals and avoid fads. It continues with monitoring your kids homework and schoolwork so you know what they are being taught.
At the state level it means making sure that schools are funded properly, but not extravagantly. Keep the state standards simple and focused on the three R's and again avoid fads (see California for a lesson on what not to do).
At the federal level, get rid of the Department of Education, which does not educate, and in general get out of the way of the states and the people. US funding and regulations harm more than help, period.