No we are not naive to think that India wont attack, infact we know India will attack, however that does not mean we wont attack once it comes down to that and moreover once India attacks, it will turn into a war and not just a conflict which means that sooner then latter international community will step in to avoid this war turning into a nuclear conflict and therefore some sort of agreement will be established between Pakistan and India to end conflict over the water issue which means that India will have to open up the waters again,a win situation for us.
So in the end if anyone that is naive, its you guys who think India can do whatever it wants and Pakistan will do nothing about it.