Let's double-down on this and point out that the marauding Burmese desecrated temples of their neighbours -- knocking heads off Buddhas -- and they were of identical religions!
When Angkor Wat was being raided by art thieves operating out of Thailand, they knocked off heads off of buddha not to be disrepsectful per se, but because they wanted to loot and sell those heads on the black market. [1]
Sounds pretty comparable to Christian iconoclasts tearing down images of saints. I.e. it was the "right thing to do" and they probably thought Jesus would be horrified to be part of an idolatrous image.