Punjab has 100 million people living in it. It has too much political power.
Also, the real Punjab are the districts around Lahore. North Punjab (Potohar) and South Punjab (Seraiki Belt) are not really Punjab.
This "province of Punjab" was a British made creation with complete disregard for differences in culture, ethnicity and language. I fully support Punjab being divided up. Maybe for the first time in it's history, Punjab will be led by actually PUNJABI leaders, and not Amritsari 2 number Kashmiris pretending to be Punjabis.