Some things are inappropriate. Indoctrinating a 5-year old into any kind of sex is inappropriate for little kids by adults, and parents in Florida in general want nothing to do with teachers teaching children about sex that doesn't produce any grandchildren if they care at all about family lines. Some heterosexual couples consider sex at school inappropriate until marriage to a person of the opposite sex so their genes will go on. Homosexuality cancels and reduces the chance that a family genetic line survives.Nobody wants to tell 5 year olds about their sex life. But it should not be illegal for someone to mention their same sex spouse
Consider it a survival issue to some people, and they have every right to have their survival instincts respected.