Well, remember that Oswald was supposed to be a rabid Castro loving Communist--we all know that that wasn't so. Castro hated Communists and was friends with men who had trained the Cuban freedom fighters that Kennedy left in the lurch at the Bay of Pigs. Oswald's public Red activities were purposeful.
Why would the father be so publically Red???
That's too easy!!
Obviously, I meant to type--Oswald hated communists.