If it were somehow easily possible to strip Pakistan of their nukes, it would be done. Once a country breaks through the nuclear line, the options for dealing with them rapidly dwindle, as we're seeing with North Korea.
Once Iran has nukes, Saudi Arabia is guaranteed to pursue their own. Then suddenly the revolutions that are so common to the middle east become globally threatening to billions of people. Just picture a powerful terrorist group - whether ISIS, Hezbollah, Hamas, etc - with suitcase nukes, it's the classic dread. Nobody else has used nukes in 70 years, for good reason. That will not remain the situation if those types of groups acquire them, they're designed to self immolate. Any of those terrorist organizations would sacrifice their entire organizations, without a second thought, to detonate such a weapon in a major Israeli city. Israel by contrast, has had nukes for decades and could destroy any given nearby country at will, and has chosen to never use them. There is zero chance Israel's enemies will behave similarly: they openly, frequently call for the genocide of Israel.
To know who are exactly are they: You may need reopen the history books for 19th century history about Muhammad bin Abd Wahhab, how his father and brother opposed him, what Ottoman's Muhammad Ali Pasha tried to do, etc. connection of the said events with Arab Revolt, T.E. Lawrence, the Saud family, Palestine, Fall of Caliphate 1924, ...Things pretty much went out of hand in Muslim world
From theological perspective (aqeedah) and approach in studying the religion, you can see how much Sunni and Salafi differs.
Probably the only reason Sunni today have diplomatic relations with Saudi Arabia because they control Makkah and Madinah.
So does nuclear Pakistan.