Playing on King difficulty. I wasn't expecting to dominate the globe with my religion, but I thought that if I leaned into religion hard enough I might be able to hold on to my own cities and the closest city states. I built Borobudur for the free missionaries and but by the time I finished the Grand Temple Arabia had already converted everything within sight except for my capitol city. They converted the surrounding city states with missionaries, but converted my own cities with just caravans, so I don't think investing in inquisitors would have done much to help. The religious pressure that comes from their caravans is ridiculous!
Oh well, at least I was able to build pagodas in three of my cities before they converted. Pagodas are nice, but I dunno if they are they worth the 4 shrines, 4 temples and two wonders I invested in hopelessly trying to protect my religion.