"Perhaps they (school board) went overboard"
Yes.
"...they did so in support of a conservative value you claim to support - that of parental authority"
Nope...don't buy it.
Then perhaps you should take your advice from post 312 and refrain from making assumptions until you have all the facts.
Are you a mind reader? Do you have a reason to believe that the bus driver was fired for any reason other than the one given?
She showed very poor judgement in choosing to discuss that issue with very young children. If you choose to see this as a free speech issue, without realizing that young children are not the same as older children or adults, I really don't know what else to say to you.