arguing that the founding fathers wanted faith to be a “big part” of government

No they didn't. They came from a nation where the King was head of State and Church. That was literally one of the things they absolutely DID NOT want in the next form of government.

Believing with you that religion is a matter which lies solely between Man & his God, that he owes account to none other for his faith or his worship, that the legitimate powers of government reach actions only, & not opinions, I contemplate with sovereign reverence that act of the whole American people which declared that their legislature should make no law respecting an establishment of religion, or prohibiting the free exercise thereof, thus building a wall of separation between Church & State.

— Thomas Jefferson (1802)

There needs to be an understanding that many founding fathers of this nation wanted religion to be between themselves and their chosen god. Because there isn't a "establish religion within Government" that's what foolish people think it always ends as "Government establishing religion".

Like we could have Members of Congress that establish laws and participate within the marketplace they have created, come win or lose. However, we know that instead Members of Congress manipulate the market solely for wins at the loss to others.

If Congress cannot help themselves to be greedy when given a free market, what makes anyone think that they won't outright dictate religion if given the chance? And the answer is, they wouldn't. That's why there is a separation. Given the chance, if enough Baptist got into power, they would absolutely outlaw Catholics.

The Founding Fathers weren't idiots. They absolutely held tight to the "power corrupts but absolute power corrupts absolutely." Any time a government is handed the power to mix religion and law, that law turns into dictating religion. That's why there is a separation. So we don't have to go Salem Witch hunting folks based on which definition of the Trinity they hold to.

They all think this moment of peace between the various Christianities will just last until forever, not realizing that the reason there is this peace is because all of the various flavors get treated equally. Change that equation and we're right back to the 1600s where we've got one cult trying to murder and outlaw the others.

These idiots have zero idea what they are clamoring for. They think their team, should the equality barrier get taken away, will be the one that wins out. And it's likely that enough zealots exist that Speaker Johnson would be burned at the stake for some odd reason his version of God isn't the correct one. Or even worse, Speaker Johnson's version get outlawed so it'll be legal and cool to burn him at the stake.

Like how bad does one have to fail at history to not understand this point?