The valedictorian or any other scheduled speaker can say whatever they want. Government censorship is far more dangerous than anything a kid can say from the stage.
There is no right to go through life without ever hearing something you find offensive. The idea that there is such a right is why school bureaucrats prohibit speeches that thank God. From your posts it appears that you also agree with that censorship by government bureaucrats. Is that your position?
Great so the next one can pull out a joint and light up, or turn around and say that the Principal was caught in a compromising position with a poodle. I am certain that you would be okay with that.
There is no right to go through life without ever hearing something you find offensive. The idea that there is such a right is why school bureaucrats prohibit speeches that thank God. From your posts it appears that you also agree with that censorship by government bureaucrats. Is that your position?
The issue is not what is or not offensive, the issue is common sense. Freedom of speech is not, has never been, and was never intended to be absolute.
You are not allowed to yell fire in a crowded theater, and you are not allowed to make libelous/ slanderous statements about another person.