Originally Posted by netsalt
In the beginning the establishment clause spoke to Congress and the Federal Gov directly but with the ratification of 14th amendment the states were brought in.
" No State shall make or enforce any law which shall abridge the privileges or immunities of citizens of the United States; nor shall any State deprive any person of life, liberty, or property, without due process of law; nor deny to any person within its jurisdiction the equal protection of the laws."
Again....the intent of the 14th was toward former slaves and legal immigrants.
One of the protected liberties states must abide by is the establishment clause which protects the citizen from persecution by religious zealots of any stripe.
This is simply an opinion, and an incorrect one at that. Most likely, propaganda that you've heard. Think about it...our right to free speech makes this opinion pretty much unworkable.
The Supreme court has expressed a different opinion than you, their rulings have become the basis in how we apply these principles. Propaganda? I think not. Public record.