Because it preaches Marxism-—radical egalitarianism/males and females are interchangeable which is insane and irrational and denies Laws of Nature.
Feminism is Marxism to create hate and division between male and female to destroy marriages and the Natural Family and make children into emotional cripples unable to have male/female role models so they are easily warped and believe irrational Marxist ideology. (All Marxism is irrational and dumb).
The patriarchy system and Christian Ethics is based on Science (Reason) and the Laws of Nature and the Design by God of Nature-—which values the different Natural Roles of female and male to create the most flourishing culture possible where gifts and roles and merit are valued (Virtue). Science proves that males and females are intrinsically different and Marxism has to erase Natural instincts in children to make them into ignorant drones who can be herded and killed by their masters. Little girls are conditioned to kill their biological offspring; boys are taught girls are the same as boys and the boys who think they are girls are “Good” and not insane (which they are).
The idea of Individuality came from Christian Theology-—that idea of we are all made in the image of God and there is Design in Nature-—and with that their is a Duty of all mankind to nurture and care for biological offspring and is why our Constitution exists and ideas of private property.
Marxism has to destroy individuality and erase sexual identity from children so they are totally devoid of Reason-—up is down, vice is virtue and sodomy becomes a Natural Right from God. Total insanity and paganism/Satanism with Christianity erased as the Postmodernists (godless Satanists) wanted.
Marxism and feminism have many common goals the foremost is the destruction of God-given authority and roles. But Feminism has been around since Eden.
Genesis 3:17-19 Then to Adam He said, "Because you have heeded the voice of your wife, and have eaten from the tree of which I commanded you, saying, 'You shall not eat of it': "Cursed is the ground for your sake; In toil you shall eat of it All the days of your life. Both thorns and thistles it shall bring forth for you, And you shall eat the herb of the field. In the sweat of your face you shall eat bread Till you return to the ground, For out of it you were taken; For dust you are, And to dust you shall return." bold mineMen have been charmed by their women into bad decisions and women have been tempting men to violate God's law since the beginning. Still, it is not good that man be alone if he marry a "woman of character who can find" (proverbs 31:10)