Sorry, you're just beating the drum for the teachers' unions, despite your earlier denial. You have a hidden agenda -- perhaps disdain for homeschoolers or opposition to school choice. Attacking Saxon, the most successful math curriculum to come along in decades, is just a symptom of some unstated cause you are pursuing.
I donot support any teachers union, or any union for that matter. I live in a right to work state, and think it is ridiculus to have to belong to a union to get a job. I am also very conservative. I have seen good and bad in homeschooling ( from a good excuse to spend the day at the mall to parents who are knowledgable themselves and want their children in a safe, Christian environment to learn their values). I have seen good and bad in the classroom - teachers who don't know the content they are trying to teach, or who do have an agenda. I want kids to learn MATH, to learn PROBLEM SOLVING, to learn how to REASON & THINK. Saxon can work for some kids, but I would NEVER use it myself. Doing only a few problems per lesson on the subject being taught, with the rest review, is often not enough to learn the new material. Homeschoolers can spend all day on adding if they desire or need to. In the classroom, students have less than a hour per day.
Saying Saxon is the most successful curriculum to come along in decades in your opinion. I have seen no research to support that - and often research can be manipulated to show what the researcher wants shown. I am not attacking Saxon - as I said, it works for some. It is just not manna from heaven, which some Saxon users seem to infer.