Not true, Jinnah in one of his keynote speeches said that the running of the state had nothing to do with religion.
Pakistan was created so Muslims of the subcontinent can escape persecution of the Hindus. You can be a Muslim or Hindu or Sikh in Pakistan its not only for Muslims. All are equal citizens of Pakistan.
If you give preferential treatment to any specific religion or sect you open a world of possibility of discrimination against others which is exactly what Hindus did to Muslims in India and are still doing.
That would be quite hypocritical of us, to demand a separate state and then do the same to our minorities which the Hindus did to us.