Russia's putting nukes there was tantamount to a declaration of war.
We should have attacked then, captured all the Russian nuke stuff, and occupied Cuba.
The Cold War would have effectively ended then.
Collapse of the Soviet Union would have occurred sooner.
Probably would have reduced the likelihood of Viet Nam and even the worldwide muslim thing (which started in Iran because of another weak POTUS) being anything near what they turned out to be.
JFK the loser let it all happen. Other Rats like Johnson, Carter, and Clinton helped make these things the clusters that they are.
According to some of the histories I have read, there were tactical nukes already in place there, and the authorization to use them was in the hands of the top Russian officer on-scene.
A full-scale American invasion would likely ended up VERY badly, ITKWIM.