No flat earther here Shub, just someone amused by the vagaries of OCD.
OCD is sometimes better termed passion for the cause of truth. In this case, you might give a diagnosis of
nuerological damage causing retardation in creationists.
Or possibly some just have a reading disorder that allows
them to only understand the Bible in the most simplistic terms imaginable, meanwhile accusing others of not being Christian because THEY think the Bible is meaningful in profound ways.