If you look at history, the US was an experiment in social engineering. Before the Constitution, most countries were controlled by centralized control; Monarchies. The masses did not vote and all the power and wealth was at the top, controlled by families with no term limits. The majority were peasants and serfs; slaves, stuck in their class with little upward mobility.
The US became an experiment where the masses; common man, could vote because they had God given human rights based on the best of the religious teachings. The experiment needed God given rights, so even the monarch was subject to the same laws. Manmade rights fall short so there is dual justice; rig the game for some.
Religious freedom was what makes this unique Freedom and Democracy experiment possible, since religion and God; New Testament, it is the conceptual basis for the idea of equal human rights for all. The Old Testament is too clannish for equal rights for all.
If you notice, the more godless Left, prefers Socialism to Democracy. Relative morality and the freedoms of Democracy, do not add up well, together. If taken to the limits, Democracy using relative morality, leads to the need to take away freedom, in the name of spreading basic creature comfort.
The religious have more self control, due to the nature of faith in higher powers; divine law. Unlike manmade law which can be cheated, the religious cannot cheat in the darkness when man is not looking. God can still see; perpetual conscience. It is hard to have faith in lower powers; relative human morality and expect the best ending for everyone; too much cheating, This is why big Government Socialism is the goal of Atheism and not the freedoms of Democracy; 2nd string morality leads to second string culture; back to retro monarchies.
I went to a Commencement for a friend who got his MBA many years back. The speaker was a noted Economist. In his address he told a story about working internationally. He was often asked by Economists and Leaders, in developing counties, how the US is able to have so many different views, choices and freedoms and not just implode or explode into chaos? We can have guns, but there is not constant state wars among all the gun owners? In his country that much freedom it would lead to cheating, lawlessness and chaos.
The speaker traced it back to the self control connected to Religious freedom. To be a faithful follower of any religion, while not being a hypocrite, you need to steer a steady time tested course. This course prevents the ebb and flow from self serving group thinking, that could lead to chaos.
The US can have a peaceful creative chaos due to the firm mooring created by its many religions ad their followers. Love your enemy, means one cannot just fly off the handle; eye for an eye, but one has to remain conscious of compulsions; self control. The self control allows time for the event to pass and thereby life remains stable. On the large social scale, the self control keeps culture active and dynamic but united, so the sailing is easier.
The affect is similar to a boat that keeps getting holes and is taking on water. As long as there are enough people; religion, to bail out the water, it will stay afloat. But if the bailers quit; get rid of religion, the boat will sink unless we stop the citizens from having the freedom to make holes; Big Government takes over to set rules for the godless, who will make holes, but not help bail. They prefer solutions; holes, that make the problem worse; border crisis.
Even in terms of the tax budget, the Religious, by sharing common income and property taxes, have to pay for the immorality endorsed by the Left, if that immorality is placed in the budget. If all the religious could take back their taxes, and spend it on themselves and theirs, the Left could not create as much shared waste without imploding. Those with spiritual self control pay for the waste; bail the ship, which allows the left to go on longer, than it could on its own adding holes.
I like the idea of a social experiment where the religious get to keep their taxes and can spend it on what is important to them; tax break. The Atheists and Liberals can spend their tax money as they see fit; social spending. We then watch, side by side, so we can cut through the propaganda. We remove the bailers from the Left, so the smaller godless ship can sink or go to Socialism. We can remove the hole makers so the religious bailers get to rest. The religious will remain part of the continuing social experiment of freedom, but without the hole makers. Unless the Religious decide to help bail them out with charity, since many are there due to being led astray with false promises.