I'm a liberal: conservatives are evil
I'm a conservative: liberals are evil
I'm a liberal: conservatives aren't evil
I'm a conservative: liberals aren't evil
Ban Morality Games
At it's root, conservative ideology simply espouses the ideals of personal responsibility, limited government, free markets, individual liberty, traditional American values and a strong national defense.
At their core, none of those beliefs are inherently good nor evil. What makes them such is the motivation behind the beliefs, and that differs from person to person.
But the point I wanted to make was that to achieve the solution of no nukes on Cuba and maintain the MAD parameters it was necessary to go head on against the other party in what was a relatively high risk confrontation.
I would want to venture that the blockade ie the declaration of war was of the "you or me" kind. After that it was possible to discuss a deal of mutual benefit. It was in fact this type of showdown that demonstrated the amount of resolve and willingness to fight that was behind those 50 years of albeit nervous peace.