This person enters the USA illegally, steals produce for resale, doesn't pay for a street vendor's license, and avoids health department inspections and other regulations that legitimate street vendors and bodega owners must comply with; and as a result, she is taking money from legitimate business owners because they can't compete with illegal, unregulated businesses. And you are fine with that?
In New York City there has always been a thriving black market due to the insane regulations and taxes.
Without it the city economy would collapse.
Good luck getting the big city to ease business regulation.