Why are American taxpayers still forced by law to subsidize anti-democratic religion?

Context

Tax breaks for religion are not written into the US Constitution. Those tax breaks, valued at ~$100 billion/year (a conservative estimate was $82.5 billion for 2013), are a privilege. Religion in America, especially politically active American radical right Christian nationalist churches and businesses have abused the privilege and profoundly insulted the American people with deeply divisive, slanderous attacks on secularism, civil liberties and honest, unspun history.  

There have been periodic attacks on the tax break scam for a long time, but those church lobbyists and their money have been ~100% successful in not just keeping tax breaks intact. They have been expanding access to tax dollars via decisions from America’s Christofascist USSC. President Ulysses S. Grant, in his 1875 State of the Union address, commented on church tax breaks:

“correcting an evil that, if permitted to continue, will probably lead to great trouble in our land. [churches received] all the protection and benefits of Government without bearing [their] proportion of the burdens and expenses of the same.”

So, what is the cost-benefit of America’s extravagant generosity to religion? That is hard to pin down, in large part because churches and religious groups and businesses like to operate in as much secrecy as they can get away with. They can and do legally get away with a hell of a lot in secret. The law protects and nurtures rogue theocratic organizations.

This article by Christianity Today goes into some of the history of what I see an a religious tax scam industry in America. 

Heartbreaking brutality from organized

American religious criminal syndicates

Earlier this week, NPR broadcast a long segment (~45 minutes?) about people who were sexually abused and raped by various church leaders, including some high level people (Bishops and whatnot). The NPR broadcast heavily quoted the video below about American church sex abuse and rape. Al Jazeera produced the video.

Some religions, like the Mormon religion, protect pedophiles, They publicly deny it (and brazenly lie about it) or keep silent when questioned. NPR Illinois commented:

A reckoning is taking place in the Church of Jesus Christ of Latter-day Saints and Jehovah’s Witnesses as stories emerge of child sex abuse. 

Years ago, outrage erupted over how the Catholic Church allowed such abuse to go unchecked, but fewer may be aware of how other faiths are covering up abuse in their ranks.

We also highlight the latest reporting from Al Jazeera’s Fault Lines documentary, “Secrets of the Clergy”:

We reached out to the Church of Jesus Christ of Latter-day Saints for a statement for this program, but did not hear back. 

We also contacted the United States Branch of Jehovah’s Witnesses. Below is the statement we received in full. [the statement is an outrageous pack of lies]

Among the galling insults that religions like Mormonism practice is actively protecting elite church pedophiles and successfully blocking or watering down laws that would require report reporting of criminal sexual assault and rape to law enforcement. The churches want to deal with the problem by hiding, downplaying and denying there is any problem at all. These church leaders have the viciousness in themselves to blame the sex attack victims, not the perverted usually adult male rapists and molesters.

This video and the NPR broadcast left me outraged and bitter about how corrupt and ineffective our two-party political system has become. Maybe it always was that way. This is a moral outrage, pure and simple. The laws I have to live by supports these hideous, lying criminal syndicates that shield themselves by calling their operations a religion and shielding their criminality as an internal matter of religious freedom.  

Qs: Should tax breaks for all religions be eliminated or just those that protect rapists and other kinds of perverts? What about Christian nationalist churches who are active in politics and routinely skirt the law (the Johnson Amendment,[1] now widely ignored) that demands loss of tax break status for politically active churches and groups? Should America be a theocracy with Christian Sharia law controlling and run by a bigoted, White male Christian Taliban, or should the US remain a secular nation with the secular Constitution we now have?

Footnote: 
1. Wikipedia on the Johnson Amendment: 

The Johnson Amendment is a provision in the U.S. tax code, since 1954, that prohibits all 501(c)(3) non-profit organizations from endorsing or opposing political candidates. Section 501(c)(3) organizations are the most common type of nonprofit organization in the United States, ranging from charitable foundations to universities and churches. The amendment is named for then-Senator Lyndon B. Johnson of Texas, who introduced it in a preliminary draft of the law in July 1954.

In the early 21st century, some politicians, including former President Donald Trump, have sought to repeal the provision, arguing that it restricts the free speech rights of churches and other religious groups. These efforts have been criticized because churches have fewer reporting requirements than other non-profit organizations, and because it would effectively make political contributions tax-deductible. On May 4, 2017, Trump signed an executive order "to defend the freedom of religion and speech" for the purpose of easing the Johnson Amendment's restrictions.