If true then indeed sad.
However, I want you to also look at the other point of view: In which other major political party (except may be Jamaat i Islami) there is more public dissent and even desertions from the topmost party leaders when compared with PPP? Sherry Rehman, Naheed Khan, Safdar Abbassi, Aitzaz ahsan and now FM Kasuri. Which other political party had some topmost leader sticking his neck out like Gov. Taseer for a helpless Christian lady--against that party's own cowardice on that issue--only to be killed? In which other political party there are CEC meetings which have heated debates and dissenters like Raza Rabbani, Sherry Rehman, and Aitzaz Ahsan express their views openly?
PPP is running the country on ad-hoc basis. Incompetently. It will pay a price come next elections. But let's look at the alternate forces. At the larger picture as well.
Meengla,
I admire all those people for the progressive positions they have taken on various issues, but the fact of the matter is that the PPP of today, as a party, represents none of those values beyond lip service by the odd leader here and there.
Most of the people you mentioned are sidelined from the corridors of power and influence BECAUSE they spoke up in support of justice and the 'correct thing to do'. Sherry Rehman was booted out because she protested Rehman Malik's heavy handed tactics with the media and taking over the responsibilities of information minister.
Aitzaz Ahsan might as well not be in the PPP, so irrelevant is he at this point.
Naheed Khan, sidelined.
Zardari did not even attend Taseer's, a man who was loyalty personified to the Bhuttos and Zardari, funeral.
The PPP openly denounced his, and Sherry Rehman's, positions on the Blasphemy law amendments.
Qureshi has been kicked out for taking a principled position and refusing to bend the rules.\
And lets not forget the big man himself, ZA Bhutto, who laid his own seeds of intolerance and hatred for the sake of political power, both in terms of what happened in alienating East Pakistan, as well as the prejudice and open discrimination suffered by the Ahmadis in Pakistan.
For the PPP to live up to the promise of these leaders you mention, it has to be taken over by the same - ZA Bhutto and Zardari are proven failures and leaders in the mold of Machiavelli - Machiavellian politics is not going to fulfill Jinnah's vision of Pakistan.
The PPP of today represents none of the progressive values these people stand for, and if an Islamist party (Nawaz or someone else) can at least deliver on basic governance and development, even if at the expense of 'liberal and progressive values', it is better than the current PPP, which is delivering neither on governance, nor its 'liberal and progressive' values.
A glass 'half full' with the Islamists is better than a glass 'completely empty'.