Teacher says little Johnny has ADHD.
Teacher might say that Johnny has behavior problems and is failing the class. That evidence may be provided by the parents to the doctor, who then can make the diagnosis along with lot of other criteria. At no point does the teacher talk to the doctor... Nor does the doctor force the child to take medication.
As a male with ADHD who had a hard time sitting still in class, no I am not going to pretend that there are not difficulties with modern education and male development or people with ADHD. And like everything else ADHD is a set of normal human behaviors and experiences taken to disorder. High activity in boys is normal behavior and does cause issues in class. It also takes more than just hyperactivity to be diagnosed.
But that's the thing, private schools aren't required to take the kids with disabilities or behavior disorders.
why would you not be happy to get rid of people whjo0 don't share your values
I don't take umbrage with school choice, nor do I believe that public schools are unfettered by shedding children of conservatives. Many public school educators are religious and conservative. Further my personal experience in a extremely religious and conservative college tell me that your proposed solution is less effective than you are proposing. Closeted gay kids of conservatives that couldn't talk about their sexuality with their parents didn't suddenly become straight after reaching the end of high school. (And not for lack of trying, those conversion camps or talks from Exodus International sure weren't effective)
However the issue is ending the financial responsibility for supporting the public system, just like how someone without children still has to pay taxes. Because paying isn't about your kid, but about your neighbor's. Secondly those schools need to have the same requirements to have a good education. Like having qualified teachers or taking kids with disabilities / behavioral disorders. Or not shoving a kid into a room to read religious propaganda books without a teacher.
Again, I called no one names and you were responding to me. No, being in support of private schools doesn't make one a racist or a religious zealot. That said inverse can be true, there are plenty of people who are those things and are in support of private schools because of those beliefs. People who are White Supremacists would want private schools, let's not forget "Separate but equal" and school integration. They would have no concern for how their actions would affect other peoples children.
All said, if people uphold their civic responsibility for having everyone's children have the opportunity for quality education, then I have no objection to people choosing to go to the school of their choice including religious or private schools.