You obviously misread my opening question:
I'm referring to Bush 43 being President from 1981 onwards. (born much ealier than 1946..let's say between 1915-1925) but still the unilaterist, with us or against us, attitude....
I just want to say right off the bat, that I'm not saying any of this to be political. I'm not such a big fan of Bush, but I'm just saying this stuff because it's my opinion on the topic:
Dubya used a very big "us vs. them" approach to foreign policy. He was a big fan of unilateral military force. He very definitely used covert force in ways that he wouldn't admit unless his administration was caught red handed.
None of those are anything that were out of the ordinary in the Cold War. Eisenhower and Kennedy's greenlighting of the plan for the Bay of Pigs (it may have happened on Kennedy's watch, but Eisenhower had okayed a much larger plan), Truman's intervention in Korea, the U2 shootdown, Vietnam, etc.
I don't see any reason he'd be signicantly different than Reagan or Johnson. My father, who was born in the 40s and grew up in the 60s, often compares him to LBJ.