Millions of Catholics do something similar and claim that because its a really ancient belief and we are all supposed to respect it.
I'd certainly respect their right to hold the belief (no matter how illogical I think it is). The problems come when one tries to get others to believe the same thing, or argue it is rational to hold a particular belief. Then all bets are off as far as I can see. I sometimes get the impression that challenging beliefs is seen as something disrespectful - I can see that it could be done in a disrespectful way, but I can't see how such debates would be disrespectful in the own right (or should I say rite? ).
I guess some people look for perceived insults as a way to stifle proper debate.