In a nutshell, the Death Cult is a heretical mutant offshoot of Christianity that discards Christian doctrines it doesn't like, warps the others into anti-human inversions of their original purpose, and enforces them with rabid zeal.
You should take some time getting to know the Death Cult, since it's now the dominant cultural force in the West.
Cult: vicious ritual acts that are each inversions of a Christian sacrament. Taking part in a hate mob to unperson an infidel is reverse confession. Butt marriage is the inversion of holy matrimony. Butchering unborn babies and consuming their remains is the Death Cult's profane communion.
Code: the Byzantine and ever-changing form of cynical, coercive speech codes known as political correctness is now so infamous that Death Cultists are scrambling to rebrand it.
Creed: The Death Cult embraces two coequal but contradictory dogmas. 1) Everyone is so radically equal that all distinctions between individuals are oppressive social constructs. 2) Straight, white, Christian males have unnatural superpowers which have enabled them to enslave and oppress everyone else.
Unlike the PopCult, which is really just a funnel into the Death Cult run by the latter's high priests, the Death Cult does offer explanations for humanity's past, present, and future.
Origin story: Everyone existed in a natural state of blissful equality until straight, white men enslaved and colonized all other groups. The golden age ended, bringing forth misery and inequality by the evil white man's hand.
Pattern for daily life: All death cultists must work tirelessly to smash the patriarchy, bash the fash, and end the scourge of whiteness. #Resist!
To simplify matters, all of this boils down to relentlessly attacking the Christ and His disciples, though admitting that out loud breaks the Death Cult's discipline of the secret.
Eschatology: Once white people are a minority and the churches have been turned into dance clubs, the Golden Age of peace and equality will dawn once more. Most people living today won't be there to see it because they'll have been murdered, but it'll totally be worth it!