The best writing would be the best writing. There are advantages to writing something you know and have experienced, but such a blanket statement like ‘the best writing would be from a woman in a hijab’ suggests you care more about the qualities of the writer than the quality of the work.
What if the person in the hijab can’t write, is incapable of structuring their thoughts, or just writes plain nonsense? Do you still prefer it over any other writer? And if you do get your work platformed because you have X characteristics, what does that do to the overall quality of the work by people from that community? Aren’t you creating a two tier system?
The ideal solution is to find writers who are excellent and who wear a hijab. The way to do that is to anonymise the process completely and pick the best written stuff and to ensure the people selecting the work are diverse and representative.
What you’re trying to overcome is the proliferation of mediocrity, not encourage further nepotism in other racial groups. Anonymise and select better, don’t engineer the competition so the girl in the hijab wins, find the winner and if she’s wearing a hijab then the world is getting better.