Yes. that’s true for north, north-central Punjab.
However if you are closer to the border of Sindh then there will be more of chance for Sindhis to do business.
Similarly Punjab areas bordering Balochistan will have higher tendency to accommodate Baloch origin folks.
OK you may have a point based on the voting patterns in Pak.
let’s not forget though that most of the people in rural areas of Pakistan, India, BDesh vote for their biradri, tribe, caste, ethnicity etc.
Mayawati, Lallu Parsad etc. type politicians get elected year after year after year regardless of their performance, regardless of their lawlessness etc.
Closer to home, Mohajir “biradri” has given votes to some of the most corrupt leaders from Karachi year after year after year just because someone comes by and tell us “hum hain to mohajir”.
So voting patterns in the whole of subcontinent are kind of skewed in favor of “special interests”.
So are the urban leaders. They too flaunt their power and run and hide from the law. Then why to blacken only one class?
The bottom line is that “two wrongs do not make one right”. However we the educated elite should not color everything with classist or ethnic-ist paint.