This is what bothers me about criticism of Scientology. How many wars have been fought in its name? How many nations conquered and people enslaved? I'm an atheist but of all the lousy things done in the name of religions Scientology doesn't even make the top five.
So answer your own question: "How many wars have been fought in its name? How many nations conquered and people enslaved?" for other religions? (People organizing along existing religions groupings during a war doesn't count.)
It's certainly not many: https://en.wikipedia.org/wiki/Religious_war#Modern_period Seems like: Sudan, Yugoslav, Lebanon is debatable. Could maybe add ISIL.
On the other hand Scientologists have enslaved 5,000 to 10,000 today, right now.
See also: the slavish devotion to maintaining the Palestinian peoples' suffering. A people deemed inferior by religious institutions which have their grasp deep, deep within the American ruling classes' psyche ..
Lots of awful acts happen all over the world, but most of them are not occurring with impunity under functional legal regimes.