Your ignorance of history is amazing. Why did Bhutto and Sharif practice family rule? That's because if they don't implement family rule, PPP and PMLN will easily be divided and bought by the Pakistani military and ISI and eventually disintegrated! After Ali Bhutto was executed, a large number of unsettled elements of the PPP were wooed by the Pakistani military to leave the PPP. After Sharif was replaced by Musharraf, the PML quickly split into PMLN (Q). The suppression of Bhutto and Sharif by the Pakistani military was not comparable to that of Imran Khan. Imran Khan has always been the darling of the Pakistani military!