It takes more than a simple majority to start killing every nonbeliever…

Paraguay is about 90% Catholic. Is that enough of a majority? Should we expect a massacre in Paraguay any day now?

because Catholicism doesn’t have the numbers.

Catholicism has the numbers. There are several countries in the world which are majority Catholic. (Including Vatican City, which is 100% Catholic.)

All the Abrhamic religions also say to do horrible shit like kill non-believers

I went to Catholic school for two years, and I don’t recall being taught to kill non-believers.