Bill, I know your earlier experience in a parochial school was not positive, but many of us have been in great faith-based schools. I have spent 36 years in four different ones and although none were perfect, they were all positive experiences.
If you can afford the cut in pay, perhaps you should start looking in that direction. The majority of the things you mention are not in the majority of faith-based schools. The cut in pay may be worth the time to teach instead of refereering, taking care of vandalism, and fearing for your life.