The Town is authorized to regulate the change, alteration, reconstruction, reestablishment, extension, destruction and abandonment of nonconforming uses in accord with the New York State Town Law and general case law. The purpose of this Article IV is to limit the injurious impact of nonconforming uses and/or structures on other adjacent properties within a particular district and the community as a whole, while recognizing that the change, alteration, reconstruction, reestablishment or extension of nonconforming uses and/or structures may not be contrary to the public interest or the general purpose of this chapter when failure to allow such change, alteration, reconstruction, reestablishment, or extension would itself lead to neighborhood or district deterioration.