The question was; "So you believe that compelled speech is acceptable?"
For students in school, yes.
Rote recitation provides the fundamental basis for education.
Same as making it mandatory that students learn to recite their ABCs.
Same as making in mandatory that students learn to recite their multiplication tables, over and over and over again.
You want to file a lawsuit against "mandatory" ABCs and multiplication tables?
How about foreign language classes where speech is mandated to indoctrinate students with nouns, verbs, adjectives, grammar, etc. etc. etc.?