Nonsense - your usual unsubstantiated bull. claims and statements.
S-Korea only came into existence, upon Stalin and the USA agreeing that the USSR could occupy the former Manchuria and Northern Korea. Formalizing the 38th parallel to be a border of influence. See Cairo Conference 1943 and Potsdam Conference 1945. Both conferences not involving the exiled Korean government. But agreeing onto a UNITED KOREA.
As such the US government did exactly the same thing as it had done to Eastern-Europe and East-Germany - instead of sacrificing US "boys" to "help" others, let the Soviets bleed instead.
The delegation by the exiled Korean government (in Chongqing at the time, the ROC ruled by the KMT) had declared a government of a United Peoples Republic of Korea on September 1945. Since this delegation comprised foremost of leftists - the US military government under Gen. Hodges refused to acknowledge this government. Furthermore declaring only the US Military government to be legal, and the United Korean government to be only recognized as a political party. Thus the USA set the basis for the later ensuing Korean war.
The USA was simply afraid - reluctant to acknowledge a United Korean government that might be "friendly" or adherent to Stalin and Mao. Just as with e.g. Vietnam.
Also nonsense - the vast majority of the non-elitist Iranian society was in opposition to the Shah's suppressive regime, upheld foremost by the SAVAK - the Shah's Gestapo version - instituted and trained by the CIA and Mossad. (Do you know any Iranians?)
Had the USA promoted - insisted onto democratic elections "helping the people" - a moderate Western oriented government could have succeeded the Shah. Instead they allowed for the Shah's oppressive methods and thus promoted Islamic radicals to take over the opposition groups and parties.
Who is YOU?
No - the USA and it's "unconditional" support for a Nazi-like, Israeli Zionist faction, might evolve into the annihilation of Israel and it's folks.