Because it is a form of Satanic Inversion.

Take something that is good/represents good, and do a complete 180 flipping it on its head to turn it evil. "Do unto others" (The Golden Rule) becomes "Do as thou wilt" (a Satanist oath), men sleeping with men being an abomination in the eyes of God (Leviticus 18:22; Romans 1:27) is now something to be proud of and strive for (California, and recently schools all over), and prohibitions on ordaining females as religious leaders (1 Timothy 2:12, 3:1-9; Titus 1:5-9) being tossed to the side played a large part in all the other nonsense gaining as much ground as it did.

Although the Capital C Church has been under an attack in one form or another since Roman times, ground didn't begin to be taken until the 1950s and 60s. The UMC (Methodists), PCUSA (Presbyterians), UCC (modern descendants of the Puritans), the Episcopal Church (ie American Anglicans), ECLA (Lutherans), the Roman Catholic Church, and to a lesser extent Baptists, have all fallen to what should be considered a successful infiltration by the enemy, and I leave it up to you whether that is a physical enemy or a heavenly one (see Ephesians 6:12).

Because it is a form of Satanic Inversion.

Take something that is good/represents good, and do a complete 180 flipping it on its head to turn it evil. "Do unto others" (The Golden Rule) becomes "Do as thou wilt" (a Satanist oath), men sleeping with men being an abomination in the eyes of God (Leviticus 18:22; Romans 1:27) is now something to be proud of and strive for (California, and recently schools all over), and prohibitions on ordaining females as religious leaders (1 Timothy 2:12, 3:1-9; Titus 1:5-9) being tossed to the side played a large part in all the other nonsense gaining as much ground as it did.

Although the Capital C Church has been under an attack in one form or another since Roman times, ground didn't begin to be taken until the 1950s and 60s. The UMC (Methodists), PCUSA (Presbyterians), UCC (modern descendants of the Puritans), the Episcopal Church (ie American Anglicans), ECLA (Lutherans), the Roman Catholic Church, and to a lesser extent Baptists, have all fallen to what should be considered a successful infiltration by the enemy, and I leave it up to you whether that is a physical enemy or a heavenly one.