I always think of salafism as the “biblical literalist/creationist” stream of the “Protestant” Sunnis vs the “Catholic/orthodox” Shias - and god knows that the catholics and protties have been fucking with each others’ places of worship for centuries.

(Alternately - the haredi faction of orthodox vs reform judaism, which didn’t work out great for Rabin…either way it’s a gross oversimplification, but helps me keep the factional tensions in Islam more or less straight).