Do I think this image is as horrible as the majority of APS seems to? No, I do not.
Do I support the existence of school uniforms and dress codes? No, I do not.
Do I even support the existence of public schools? No, I do not.
But I suspect very much that, from a standpoint of what the law is, the school is probably going to be in the clear, for reasons that MrsSmith explained already.