I am a retired mathematics teacher who taught for 33 years. My last few years were horrible because there was no discipline anymore in the schools. The administrators were afraid of being sued, so the kids and parents basically did what they wanted. I finally found a reply that worked with some overly litigious parents. "I'll have my lawyer call your lawyer".
    I never stopped loving the process of watching a child's face light up when he/she finally "got it". But now, they don't have to "get it" they just have to have experienced it. Jeez.
    After I retired, I went to work for the US Fish and Wildlife Service as an Educational Consultant. This turned out to be my dream job. I got to write lessons and then teach these lessons to students who visited the wildlife refuges. You might want to look into this as a way of still getting satisfaction from being an educator. What I loved about my new job was that I could go to the bathroom whenever I needed to and I didn't have to wolf down lunch in 18 minutes while on the phone with a parent.
    Also, charter schools might be a way to go. I am intrigued by the suggestion to start a home school program. That is going to be my next project. You don't live in RI, do you?