The complaint that teachers have to "teach to the test" is a long standing one. My limited experience with common core is that it actually gives teachers more opportunity for creativity. One thing I have heard (from teachers) is that those teachers who have been teaching for some time and are comfortable with their routines, have a lot of work ahead of them. They are not happy about it. Teachers who are already engaged and creative will have easier going. We have two young English teachers that are new to our school, they both came in last year and comprise the "English Department" at our small school. They are doing amazing things.
Remember, each state/school district is responsible for creating their own curriculum under the standards.
Most of the articles you have linked do not cite the fear and paranoia that you are presenting. Of course there will always be discussions and disagreements on the best way to accomplish any goal. Nothing wrong with that as long as those discussions are based on facts and understanding of the subject.
We are done a great disservice when people like Glen Beck weigh in with their fear mongering tactics on such important issues.