Christians were prosecuted since Christ's crucifixion. Long before the relentless assault of globohomo on the Church.
But this time I'm taking you to the French Revolution. When I believe the modern notion of besieging Christianity started.
Marquis de Sade is known for his erotic works which include homosexuality, child rape, and blasphemy. He wanted to liberate everyone from the shackles of Christianity because crimes were committed due to repressed lust.
A French philosopher famous for his libertine sexuality understood revolutions start when you undermine people's sexuality.
"Lust is to the other passions what the nervous fluid is to life; it supports them all, lends strength to them all ambition, cruelty, avarice, revenge, are all founded on lust." — Marquis de Sade
He was a proponent of state-sponsored brothels to keep the population happy and docile. De Sade forcibly held five women and a man hostage to perform sexual acts for six weeks. The man was also a fierce advocate for absolute freedom. Surely the irony doesn't escape you.
Even though he was a disgusting blaspheming sadist, the man was way ahead of his time in the art of psychological warfare.