I am sure you believe that but it was not the thinking at the time.
My guess is you were not really paying that much attention to politics
in 1963-4.
Johnson won in 1964, largely on the sympathy vote but once the dew
came off that lily he was pretty much run out of town on a rail.
Your guess would be wrong, as usual. Oh, and Johnson won for any number
of reasons, not the least of which was that Goldwater at that time in
the Arizona senator's life was seen as a right-wing crackpot, and the
GOP was full-on with its racism. Johnson won in a landslide. Goldwater
won Arizona and the most backwards, racist states in the South, and that
was it for him. Your post was just another example of your shallow,
comic book knowledge of history.
Insults aside. If Kennedy had lived the ticket would not have been
nearly as popular. Besides the sympathy vote you also have the fact
that virtually all of the legislation we associate with Kennedy would
have still been stalled in congress. Johnson was the one who pushed
through things like the civil right act and it happened after Kennedy
was gone. Kennedy and congress did not really get along that well. He
would have been running on a failure in "Cuber". A phony "Missile
Crisis" that by 64 we knew was unnecessary and actually a win for
Khrushchev because we were pulling our missiles out of Turkey.
Then there was Vietnam. In fact there is still a chance that without
the assassination, we might not have had Goldwater.
For a rematch of 1960, they might have dragged out Nixon again.