Being Muslims, we should discourage the "takfeer" campaign. All shia, sunni are Muslims and no one is wajib ul qatal except those who are given a verdict by court.
Case of qadyanis is different, by calling them Muslims, they are openly violating constitution of Pakistan and creating disinformation about Islam. mirza qadyani and his followers are not Muslims. We, the followers of Pir Mehr e Ali Shah (r.a) condemn all those people who call qadyanis as Muslims.
One thing should be highlighted that in past, many shias and sunnis are declared as qadyanis due to political differences in this region of South Asia. Many mullahs are still using this tool to deal with their political opponents. Only state and courts have right to deal with these elements.