I imagine the rationale is the same for most things people consider unpleasant.So long as it's not going on under your nose and there's offical sanction, it's okay, even when it's not. That said, pigs aren't animals and they're very tasty, whereas jewish people aren't tasty and complain more
(
Smallbrainfield,
Mon 18 Apr 2011, 14:37,
archived)