The U.S. has morphed into very different personae depending upon the decade in question.
And while I think everything you've stated is a fair assessment, you left out why militarism is so amped up inside the U.S.
During the 1960s and 1970s when education WAS liberal, and radio stations played lots of anti-war songs, and T.V. shows had actual debates about the moral and financial costs of war... it was a different America.
The very rich who always resented the tax policies implemented after the Great Depression-- added to the Glass Steagall Act and the New Deal--went to work aiming their artillery at rolling back all of those items.
By 1980, not only did Reagan's anti-government mantras begin to influence the body politic, Margaret Thatcher echoed the same ethos on the other side of the Atlantic.
Then rich brothers like David and Charles Koch began to rally smart, albeit deceptive persons around them and they came up with a set of tactics that would poison the heart of this nation.
Whereas the MIC and its generals committed to war as a way of life felt threatened by the anti-war fever of the l960s and l970s, the business class was impatient with all the benefits improving the lives of citizens including the Black Community.
The consolidation of media allowed for very narrow narratives and lies repeated often.
The use of think tanks infiltrated the Thought Processes inside respected universities.
Trade agreements began to downsize American industry and ship jobs overseas.
And Cable TV allowed for the emergence of an enormous demographic: The 60 million Evangelicals (Born-Again Christians) who were trained to follow Authority Figures.
The same politicians who worked for the interests of the military-industrial complex understood that by throwing the Right Wing Christians the anti-abortion "bone," they'd win this contingent's support for foreign wars.
Most human societies are pliable. The real issue comes down to which powers set the narrative and which expert lies end up repeated often. And who financially backs these incentives.
When the Supreme Court gave Big Money primacy over all other groups and objectives, it unleashed the Mammon side of the Mars-rules equation.
The results bleed all around us.
Also relevant is the net impact of the importation of so many from the Nazi upper echelon into U.S. military, academia, and the Deep State. Largely, it's THEIR vision that's brought the U.S. to where it is today in its celebration of wars, warriors, bombs, weapons systems, the almighty gun, violent sporting events (that massage the collective psyche--mostly male psyche--FOR war) and its reciprocal aversion to all things Feminine, caring, sharing, peace-oriented, or disarming.