Actually, it wasn’t. According to Jefferson, he may not have approved of the practice, but it was not necessarily a violation. Also, even today, children are free to pray in school and nobody can stop them from doing so.
Yes, in more modern times. I love how the SCOTUS likes to change history of the people who actually wrote it. That being said, I agree it should not be required. I agree, it should not even be led by the school. I disagree that a teacher should not be allowed to bow his head in prayer if it doesn’t disrupt the class.
Jefferson made the intent clear, there's no disputing this! Even you have given a little ground when you wrote..." According to Jefferson, he may not have approved of the practice, but it was not necessarily a violation." This doesn't appear to support you initial words, "Actually, it wasn’t."