Market Basket, the New England grocery chain, is a staple in immigrant communities. Not only do they shop there, they work there, too. But after a power struggle at the top of the company, customers and employees worry this could be the end.Market Basket, the New England grocery chain, is a staple in immigrant communities. Not only do they shop there, they work there, too. But after a power struggle at the top of the company, customers and employees worry this could be the end.