Woah there!
Bush 43, Clinton and Obama are Neo-Liberals... they don't have a progressive bone in their bodies.
Teddy Roosevelt was a progressive... so was Harding & Woodrow Wilson. FDR became a progressive through a series of extenuating circumstances but started out as a liberal.
Truman was a liberal
Eisenhower was a liberal
JFK was a neo-liberal
Johnson was a liberal
Nixon was a conservative
Carter was a liberal
Reagan was a conservative
Your rundown of the presidents/political philosophy is actually perceptive with the exception of Nixon. He was never a "conservative" as that term is commonly understood.
Yes, he employed the "southern strategy" to woo conservatives; Yes, he was an anti-communist Cold Warrior ( so was JFK); Yes, he talked a good "law and order" game; and yes, actual liberals absolutely loathed him.
But he actually implemented, signed into law, or occasionally proposed very liberal ideas and policies, such as the EPA.
And though he used occasionally raw language when talking about certain groups, Nixon, a Quaker from a family that had been active in the abolitionist movement, wasn't a racist in the style of Southern Democrats such as George Wallace or Robert Byrd. And though firebrand Pat Buchanan was a speechwriter and aide, he didn't support him when he ran for president, saying at the time, "Buchanan's gone over to the kooks..."
And Nixon was nothing if not politically astute, remarking about Republican politics, " You can't win without the conservatives--but you can't win with
just the conservatives." In the Republican Party of the time, Nixon was in the middle--with the Nelson Rockefeller group on the left and the Goldwater/Reagan group on the right. Nixon was a "moderate" with both liberal and conservative tendencies--depending on the issue.
A venal politician who headed a failed administration? Yes. But a fascinating man.