Who burned what in Lahore? Be more specific & substantiate your claims. I wonder how could PML-N, a party under severe scrutiny during Mushy years could get away with anything? You are most likely making a false claim; so do provide relevant & substantial references.
All political parties include people of questionable character & methods. From 100% such people in case of PTI/MQM-London/PML-Q, to near zero in case of, say, Awami Workers Party, this holds true for all parties. This is because established parties are organic structures in this society. Having 100% gentle folks in a party would mean that the party will have crap beaten out of it sooner or later. This is just a fact of life.
You seem to be very salty about Jali police muqabalas. I would ask if you were an affectee, but you are obviously still alive & typing. So, a logical question is if any of your near relatives been affected in such a case?
I would also like to find out how you can say that PML-N came out everywhere in Lahore with sticks & guns. I live in Lahore. I saw various polling stations & interviewed people. There was absolutely no such thing visible. You are making blanket statements without any solid reference, or care for being factual. This raises a question about your motives & background.