But the business of state will be Islam, refer to Quaid's other speeches. --- and an Islamic state doesn't allow non Muslims to interfere/meddle in it's affairs.
Jinnah did not intend nor was Pakistan early on an Islamic state as you might describe it, that quote is enough to conclude his opinions on religion.
Please find me an exact quote where Jinnah explicitly states what you're asserting by tying one concept to another, that is to say how you go from Jinnah's identity of Islam for Pakistan, then tying that to an Islamic state, then tying that with a particularly long rope for non-participation for non-Muslims.
Also, you should know, not allowing minorities to participate is classic oppression and discrimination. You call it 'not allowing non Muslims to interfere/meddle'. But that's really akin to making people second class citizens, the Burmese did it with Rohingya long before they began killing them, they weren't allowed the same status as other citizens. Black people in the US had to fight for similar rights, long after their emancipation from slavery.
It would be deeply insulting to imply that this is what Jinnah had in mind for religious minorities of Pakistan, and it goes against everything he has ever said on the matter.
So as to separate Muslims from Qadianis, I think this was easy.
This is obvious but I ask why, what aspect of governance, beyond interfering in personal religion which Jinnah clearly wasn't for, does it serve to know this?