This is just crooks stealing something they can pedal easily to make money for buying drugs or whatever.
To me “black market” implies that the product is not available in quantities that people want to buy. I’ve not heard of any shortages of Tide or other laundry detergents.
A black Market is also goods trade at below retail value. If I steal a truck load of Cigarettes in NC and take them up to NY and sell them that’s Black Marketeering.