Indians have difficulty in understanding Pakistan don't want Kashmir for benefit. They want its inhabitants to be free.
Its not Pakistans fault Kashmiris in Indian held part don't be want to be part of India and rebel. That is India's failure as a state. Pakistan are not going to choke them for you so India can seek "benefit" in having Kashmir. Why should they do India's bidding, this is India's problem.
Either other nations are naiive to the situation or blinded by under the table dodgy deals, vested interests bla bla bla. Pakistan knows the truth and stance on Kashmir will not change, should not change on ethical moral grounds.