Name one religion that wasn't made to justify conquest.Muhammad himself taught his followers to convert people by force. Jesus did not. The Roman Catholic church has practiced force conversion throughout its history. The Roman Catholic church was basically created in 325 at the First Ecumenical Council in Nicaea. The Emperor Constantine, who still had not converted to Christianity, for some reason was presiding over said council. Just five years later he would erect the Column of Constantine, a giant idol of himself depicted in as Apollo with rays of light coming from his face. It remained standing in Constantinople (Istanbul) for almost 700 years. Constantine was never Christian, and the RCC was never Christian either.
A high priest needs obedient followers. No need to incite fear by force. Fear will make them follow. Fear of hell. Dogs are trained this way as well.
Machiavelli knows this.
Jesus Christ talks Love. God is Love.
Do not be ruled by fear, be guided by love. You don't need a religion to love.