As a parent, I would far rather have no report cards than no extracurricular sports and arts activities.
It will be a sad day for our kids if all their activities are cut because teachers rightfully decide not to do any more volunteer work. I can imagine that teachers no longer feel valued or respected after having their rights stripped and a contract forced on them.
We all know that the best performing companies are those whose employees are happy and well treated. It is unfortunate that philosophy was not considered something important enough to be applied to our education system.