For the record, for many Catholics, JFK wasn’t our JFK, either.
Prior to Hoover's 1928 landslide victory, Catholics generally showed low turnout, and had no definite political affiliation. Smith did better with Catholics than Obama did with African Americans, and Democrats have counted on winning the Catholic vote, roughly 1/4 of the electorate (and growing) ever since.
Coincidentally, we can also thank Smith for the New Deal. FDR, who hated Catholics, rose to prominence winning the NY gubernatorial seat Smith abdicated and used his new coalition to push through his radical agenda.
I recall complaining about JFK to one of my non-Catholic friends. His reply was that now that JFK had broken the barrier, maybe some day we could get a real Catholic in office. So far it hasn't happened.