Washington’s intentional support for antisocialist autocracies isn’t something under dispute among professional historians. There is an abundance of evidence for this in works such as Killing Hope and Thank God They’re on Our Side: The United States and Right‐Wing Dictatorships (to name only a few). Here is a quote from Gian Giacomo Migone’s The United States and Fascist Italy, pages xxv–xxvi:

As Arnold Offner pointed out, the roots of appeasement were by no means confined to the European side of the Atlantic.¹⁵ David Schmitz, without taking the trouble to quote me or any other author or document in a language other than English, has confirmed my analysis in this regard and rightly linked the American attitude toward the Fascist dictatorship to a subsequent trend in the history of U.S. foreign policy.¹⁶

Even FDR would call a convenient dictator “an s.o.b., but our s.o.b.” And on at least one occasion he called Mussolini “that admirable Italian gentleman” but was otherwise far more receptive to any critical analysis of European dictatorships than were the professional diplomats in the State Department, before and during his administration. Unfortunately, there were never any Dodds or Messersmiths posted in Rome!¹⁷

Plenty of anticommunists already acknowledge Washington’s support for autocracies. They just shallowly brush off it by saying ‘at least they weren’t communist’.

For the record, I am guessing that you probably aren’t a neofascist, but I don’t need to accuse you of being one when carelessly overlooking the Ukrainian régime’s atrocities already makes you look awful.