caste system on the basis of relegion is being discussed here.
“the zaat paat bullcrap” u r talking about is entirely different from what is being discussed here. that exist due to some social factors involved (i think u r some shehri babu and have no idea why it exists and its importance) and it does not necessarily means that u consider inferior who is not of ur zaat/biradari.
that zaat paat system is common in india and pakistan. so we shud stick to the topic that saregamapa has started.