It is recognized by the Legislature that currently the powers conferred upon the director by Chapter 2 (commencing with Section 61801) are inadequate to enable the dairy industry to develop and maintain satisfactory marketing conditions and bring about and maintain a reasonable amount of stability and prosperity in the production of fluid milk and fluid cream; and that to accomplish these purposes, and particularly to insure to consumers within California an adequate and continuous supply of pure, fresh, and wholesome milk at fair and reasonable prices, including a reasonable estimate of the additional supply which is needed to provide for normal fluctuations in production and in consumer demand for those products, those powers must be supplemented by the powers conferred in this chapter upon the director to equalize gradually the distribution of class 1 usage among the producers of this state.