I don’t know where you are located, but in Tennessee, most public school teachers are happy. They will be happier when they can get rid of Common Core.
I am in californication. I know teachers on both sides of the argument. Of course, the ones that are all for common core are extreme liberals. All the normal ones are against common core. Fortunately, my kids are out of the public school system and my grandkids live in a very conservative area.