Collective Bargaining/Unionization

After reading the article about collective bargaining and unionization , I was concerned for the teachers in my state.  I felt that they were getting punished to change a program by the State Department of Education.  I don't like the word tenure and don't believe that is what teachers have now in Idaho.  Is it called rolling contracts?  I have seen poor teachers but feel that the good outweigh the bad.  There needs to be a way that teachers get their needs met.  It is kind of like the at home saying, "If Momma 'aint happy, noone is happy."  This is teachers as well.  They deserve to be paid what they are worth.  Why do we not value education?  Why do we make teachers the bad guys?