The answer to this question is available in what Jinnah sai. I quote him" It is extremely difficult to appreciate why our Hindu friends fail to understand the real nature of Islam and Hinduism. They are not religious in the strict sense of the word, but are, in fact, different and distinct social orders, and it is a dream ......... The Hindus and Muslims belong to two different religious philosophies, social customs, literatures. They neither intermarry nor interdine together and, indeed, they belong to two different civilizations which are based mainly on conflicting ideas and conceptions. Their aspect on life and of life are different. ....... They have different epics, different heroes, and different episodes. Very often the hero of one is a foe of the other and, likewise, their victories and defeats overlap. To yoke together two such nations under a single state, ........ must lead to growing discontent and final destruction of any fabric ... a state". This can be read at https://en.wikipedia.org/wiki/Pakistan_Movement.
In India there is aresurgence in Islam and now the Islamists say that their law is even above supreme court. I open this discussion which is hot and topical for all to comment. No rhetoric please.