They hijack the religion & use it as an excuse for their own agenda.
KKK did the same thing. In a way, you could argue that the the genocide that we committed to populate America & Manifest Destiny were ultimately based on people hijacking Christian principles.
If you choose to paint the whole religion w/ that broad brush, that's your issue.
The KKK did nothing in the name of religion....they tried to justify their bigotry, their fondness of owning slaves, their monetary greed that slaves brought to them, etc....using
their religious beliefs....their is no Christian teachings that actually condone slavery, or murder based on skin color that I'm aware of....at least not like there is in the Koran and
the Islamic religion.....
Newspaper editor John O'Sullivan coined the term manifest destiny in 1845 to describe the essence of this mindset, which was a rhetorical tone. It was used by Democrats in the 1840s to justify the war with Mexico and it was also used to divide half of Oregon with the United Kingdom. But manifest destiny always limped along because of its internal limitations and the issue of slavery, says Merk. It never became a national priority. By 1843 John Quincy Adams, originally a major supporter of the concept underlying manifest destiny, had changed his mind and repudiated expansionism because it meant the expansion of slavery in Texas.
Historians have emphasized that "manifest destiny" was a contested concept—pre-civil war Democrats endorsed the idea but many prominent Americans (such as Abraham Lincoln, Ulysses S. Grant, and most Whigs) rejected it. Historian Daniel Walker Howe writes, "American imperialism did not represent an American consensus; it provoked bitter dissent within the national polity ... Whigs saw America's moral mission as one of democratic example rather than one of conquest.
https://en.wikipedia.org/wiki/Manifest_destiny
Seems like the KKK, genocide, and "manifest destiny" were more politics and greed than religion.....