It isn’t restricted to Christianity, see Hindu persecution of other faiths in India, of Coptic Christians in Egypt, of Shia in Sunni areas, of Sunni in Shia areas, of Christian militias in Africa, of Islamic militias in Africa, of militant Atheists in China…
I could go on, but my point is that we Yankees get too wrapped up in our perceived exceptionalism, but we aren’t all that different from the rest of the world. Any culture that has achieved dominance will soon fear losing that dominance. O Fortuna, velut luna, statu variabilis!
Heck, even the current war in Ukraine could be considered a crusade for Russian orthodoxy.
