The Continents of North And South America were populated when business men, and aristocrats, and refugees from Monarchy and Religion, started to settle here. Hapless courtiers were sent here to accumulate wealth for their Kings, Queens, and Churches.
With the establishment of the divine right of kings, the European Monarchies with the whole hearted support of the church, enslaved Europe. The English church did the same thing. Protestants to this, both stayed in Europe, and migrated to the new colonies.
Once the American revolution was over, the founding fathers, fresh off of a millennium of State sponsored religion, and its horrible social caste system, set up a constitutional government that guaranteed all Americans they would not have to endure either government by religion, or mistreatment regarding their religious preferences, meted out by the new government of the United States. This philosophy of government also made sure to diminish the divisiveness that is created in government, when religions at odds, use the resources of government, that should belong to all of the governed.
It sets a dangerous precedent to govern by religion, in an alleged democracy, since who knows which religion will grow in number, and make areas of the US unpleasant to reside in, with the enactment of religious law that diminishes human rights?
I live in Utah. The predominant religion here, wears what is called Temple Garments, that is a kind of short sleeved underwear, oh that covers approximately what a scoop necked t shirt, and bike shorts would cover. It is expected that outer clothing will cover those garments. In many corporate situations in Utah, the dress code states the women, will not wear sleeveless blouses. I asked someone that I know isn't clever enough to hide her agendas, what she thought about the dress code, she said that she wears her temple garments, and she doesn't think it is fair for women to seem more sexually appealing than she, because they can bare their arms, in the workplace. That may not seem like much to you, but the LDS Church, has what is called a living prophet whose dictates become religious law. I consider the modern day Mormons very reasonable and nice people, but a new prophet could at any time, dictate that women will cover their heads, or never leave the home. Then dress codes in my state would change, believe me. I live on an island embedded in a theocracy. Salt Lake City is a Democratic town, the University Of Utah attracts a lot of professionals, and the city its self, stays about 30%LDS, far different than the rest of the State. Yet, the climate here is still extremely dominated by the Church. Most of the media is church owned or tows church lines. News is trivialized or unreported, or reduced to sordid tales, about any minority group that can be found to properly screw up. Theocracy bites, because if it were a math problem, it it were an engineering problem, then there would be a very shifting foundation for any edifice built, that was meant to serve everyone, and endure.
To build a proper edifice be it a temple or a prison, one must find bedrock that will properly meet the downward force of a foundation and walls. For every action there is and equal and opposite reaction. In this nation, the bedrock, has to be the good of every American.
Answer the question
Does every citizen of every belief and faith and status need this building?
Do these words respectfully communicate to every citizen of every belief, faith, and status?
Does this public education system meet the secular need of a democracy for an educated public, the need of every child to be fluent in the language and culture of a democracy?
Faith is a very personal item, in a very personal inventory of attributes. Though an enormous number of individuals may gather and proclaim one faith, true faith is a singular connection, a commitment to that connection. It is not a matter for government, or legislation.
Will they come to my house, and make my lips move in some religiously prescribed manner? Will they come to my school, and sequester my child in a room to instruct them in matters of faith, yes they will, when faith masquerades as science, when faith masquerades as law, when faith masquerades as proper behavior, in what is supposed to be a secular society.
Secular government was wisely created, to protect us from self serving "faith".
Faith is an entirely open ended equation, not available for definition by any singular entity. Faith is not a solid, a liquid or a gas. Faith is an energy state, the most clear definition, might be, calling it a mind set. The government cannot define spirit, or calling, or God, or the intent of God. That is a matter of faith.
Faith based is not something for government to be involved in, because government may not either define or sanction one faith or another, one faith over another, and still be the Government Of The United States Of America.