Due to the nature of religion, it is physically impossible to genocide and eradicate all members of a world religion.

In times of persecution, individuals can be forced to conceal their faith to survive, such as the crypto-Christians or "secret Christians" of Japan. Feudal Japanese rulers saw the growth of Christianity, as brought by European traders, as a threat to their hegemony. The missionaries were martyred in brutal torture executions, including crucifixion, in their service to Christ. The native Japanese Christians were forced to hide their faith from the government, for fear of persecution, ensuring their survival.

Similarly, a group of Jewish people in Jerusalem have recently gained controversial access to Al-Aqsa Mosque. It's a holy site in Judaism, but only Muslims are allowed near or inside the Holy of Holies, as a result of historical Umayyad conquest. So, these worshipers pretend to be outwardly Muslim as crypto-Jews, successfully gaining access to the mosque, but were eventually found out.

These same scenarios are found throughout history, especially in times of religious violence and persecution, and have ensured the survival of said religions. Religion is an outward matter, faith is an inner matter, and so it is physically impossible to genocide or eradicate all the members of a religion. Not only is it evil to slaughter innocents for having a different religion, it is physically impossible to kill a belief or idea. It is both wrong and futile to persecute Christian minorities in Muslim nations, to persecute Jewish minorities in Christian nations, or to persecute Muslim minorities in Jewish nations.

Communism, in its persecution of Christians with the goal of eliminating Christianity from the nation, is both immoral and an irrational historical failure. Nazism, in its persecution of Jews with the goal of eliminating Judaism from the nation, is both immoral and an irrational historical failure. Zionism, in its persecution of Muslims with the goal of eliminating Islam from the nation, is both immoral and an irrational historical failure.

Christianity, the most popular religion in the world, is based fundamentally on love.

God is love, and love is the most powerful force to exist on Earth or in Heaven.

When Christ returns to judge mankind, not everyone will be treated the same.

Prepare now your souls for holy judgment and be spared from pure horror.

Live in humility and simplicity, for gold and silver shall burn you.

It shall testify against your flesh like fire in the last days.

To make you as a fattened hog ready for the slaughter.

As a corrupted rich man unto the wrath of God.