But people are using the coercive powers of the government to prevent the free exercise thereof.
Witness the ACLU using the power of the judiciary to force on an unwilling constituency the wishes of the minority who, since they can't get their way by any other means, bring lawsuits to force public schools to do THEIR bidding. It doesn't appear to matter to some that the majority of taxpayers who are supporting the schools with their coerced taxes to educate their own children, object to it, and are forced to acquiesce to the demands of the few.
That's not OK either.
No, not at all. The matter before the courts regarded religious concepts and religiously motivated nonscientific claims being taught as science, in the science class. It's not up for a vote. The number of people that think either way doesn't count, the 1st Amend does. Furthermore, those on the school board that instigated the program were ousted in the next election. That knocks the majority justification down, even though it never mattered in the first place.
Tell the former dover school board members who were voted out of office after bringing "shame and disrepute" (boiler plate from an impeachment bill of particulars) to their community.
The lawsuit was filed by the parents, BTW.