LBJ wins re-election a mere year after a beloved president gets killed. To you, there is no happenstance involved. People were jazzed about LBJ all along.
I think history will record it differently. LBJ, like Ford, were presidents that.... fit in-between things....
Of the two, LBJ had quite an impact.... however....
You can't equate LBJ to Bush in almost any way. Certainly history will record them differently. LBJ *inherited*. Presidents after Bush will *inherit*.