When Prohibition was introduced, I hoped that it would be widely
supported by public opinion and the day would soon come when the
evil effects of alcohol would be recognized. I have slowly and
reluctantly come to believe that this has not been the result.
Instead, drinking has generally increased; the speakeasy has
replaced the saloon; a vast army of lawbreakers has appeared; many
of our best citizens have openly ignored Prohibition; respect for the
law has been greatly lessened; and crime has increased to a level
never seen before.
John D. Rockefeller Jr.,1932
Question: The passage indicates that John D. Rockefeller Jr. has changed his position on Prohibition's potential to achieve its goals successfully. List three reasons on which he based this shift.