The steps taken by the democratically elected PPP government are done within the laws and constitution of Pakistan. Sharif brothers are only interested in one of them ruling Punjab. They could have and still can put a name forward for a new CM of Punjab rather than causing Anarchy and Chaos. As for your statement about no use atttending NA sessions, just reiterates the point that PML Nawaz are not interested in Democracy or the sanctitity of Parliament, where millions of voters had voted for PML Nawaz MNA's to represent them.
Where was this 'love' for democracy when Musharraf was going haywire on all known democratic principles?