Have you studied American history?  Many of the first public schools, in that they were open to everyone, in the West were started by nuns or other Christian missionaries.  Not to mention hospitals, clinics, homeless shelters, orphanages, group homes, etc were started by Christians.  Why the animosty towards Christians?  Because a very small number want to teach topics you don't agree with?  Schools study a lot about various cultures already.  You seem to have only one grievance though.