Khalistanis don't want people to think that partition was India's loss, they don't think it was a loss for Hindus; they peddle the narrative that Punjab sacrificed land and life so naturally, for them, Sikhs sacrificed land and life and hence Sikhs, as per Khalistanis, have a divine right to a separate state carved out of India.
That the Sindhis were an economically, politically, and even socially developed community is reflected in the life story of Kumari Jethi Tulsidas Sipahimalani.