PPP has never claimed to be a secular party or even a theological party for that matter. The 1973 constitution is the biggest proof.
Uss kay leaders kay Harkaat tu Secular kia Non-Muslims be bat-thar hain.
And it is your statement but all PPP leaders consider themselves as Secular and you are referring 1973 constitutions so tell me is the current of PPP and its 'Bay Iman' leaders are even the Shadow of 1973 PPP or Bhutto?