I think we should give them a fair margin of doubt. The one who are showing disrespect are beyond mercy and infect reason. However, all of them are not disrespectful, they just have difference of opinion. We must be lenient with them, must use reason, logic and must tolerate their questions and counter arguments.
One other thing which should be pointed out clearly that, numbers of liberals in our society are very low. They will never form a majority in a foreseeable future. However, they have a huge influence in the policy circles of Pakistan and their influence is increasing rapidly. That is the main reason of this steady and constant shift of narrative from Islamic nationalism to Pakistani nationalism, from Jehad to the promotion of soft image of Pakistan and from enforcement of Shariah to enlightened moderation. This is going to be the biggest fitnah for Muslim Ummah and we should be mindful of the fact that we dont have any Iqbal or Mujadad Alif Sani or Ghazali to confront it.