Explaining the national identity & ideology part.
An ideology or national identity is meant to serve three main critical purposes for a nation:
1. Mass mobilisation of the masses towards a (beneficial) collective goal, short and long-term.
2. Provide mental/strategic clarity & direction in your worldview (both domestically and internationally). Prevent flawed perceptions that create a warped worldview.
3. Provide a coherent & cohesive core identity base which the state is founded upon and use as a base to build upon.
Pakistan's ideology of 'Muslim nationalism' has been a complete failure in this regard.
It is (1) firstly illogical and makes little sense, since it completely lacks any nativist or local aspect, as religions are not nations - especially not one as super large and diverse as Islam. Bangladesh proved this. (2) it promotes extreme religious dogmatism and regressiveness because social authority of the state now lies in religious figures as that is what the identity is grounded in. This leads to extremism, regressive habits, and destroys smart and intelligent foreign policy, as it is all centred around "Muslim" (meaningless identity geopolitically as explained). And (3) it fails to address or coherrntly confront domestic ethno-nationalistic issues as the population is now indoctrinated in the masses to view everyone and anyone as their "brothers" and create a strategic confusion between friend and foe.
It systematically brainwashes you into a deeply flawed and self-destructive worldview that causes confusion and regressive dogmatism. It is blinding.