Why Iran hates US

Because they are Crazy Persians interested in Psedo Religious Domination. I mean for no reason in 1979 they totally took over the US Embassay in Tehran, then to embarass J. Carter, they waited to he wasn't President Anymore to hand over the prisoners.

That's very much not true.
Lets get back to a familiar Topic: Oil

Iran(Persia) had a Shah, and in the early 1900's, signed a 60 year deal with the British, where the Iranians would only get 16 percent of the profit. Well one day Shah Qajar was like hey fuck this deal, I want to renegotiate. Well when you're the British Empire you don't take that shit. So a Coup d'etat occured. So they deposed him and found another Shah to replace him.Shah Reza. Well to be truthful in both World War I and World War II, the Iranian oilfields were being molded and carefully taken care of and were used in both wars to defeat the Germans. Even when Iran played both sides. Shah Raza decided to cancel the 60 year contract and had them sign another contract. Sounds peachy. Florida peachy.

Though, another shit in a shoe happened when Britain found out Shah Reza was making out with Hitler, which they then had another Shah deposed.So again the British put in another Shah, this time the just deposed one's son Pahlavi.

Though, things weren't so good. You see by 1950, the AIOC’s(Anglo-Iranian Oil Company) annual profits from Iranian oil amounted to 200 million pounds, while Iran’s share of the revenues was a mere 16 million. Well, What the fuck was this, the Iranians started to question. So the Government asked to see the accounts and records of the AIOC. The AIOC responded,"No, thanks." They then asked if the AIOC would do an equal share in the profits with Iran. The AIOC responded,"Blow me, we out." They left.

Iran was left with this huge resource, and not only didn't have any trained managers or skillsman, they didn't have any vessels to get the oil to where it had to go anyway.

You're wondering at this point, where the part America fits into this whole story. Well it's coming relax.

The Iranians went to a course of Nationalization. In 1951, they formed the National Iranian Oil Company.
Dr. Mossaddeq was a grand supporter of Nationalization and the Shah appointed him Prime Minister.With that came about a Democratically elected government.

Well the Brits flip their shits, and went begging to the Americans for help. As the only country after WW2 to be doing damn well, there help was needed badly. They asked Pres Truman for help but he was not down.

In 53, Eisenhower was elected and the Brits had a new friend. From his point of view, losing influence in Iran, would be giving influence to the Soviets. So this could not happen. So with American help, another Coup d'etat occurred. For the next 20 years, the reinstalled Shah killed millions and tortured even more, so to sum it up:

The Iranians hate US because we deposed a democratically elected government and instead installed tyranny. Our basic tenure of exporting freedom was finally found to be a fraud. Expanding freedom if its desirable for US, instead of desirable for the people under the existing tyranny, is not logical and makes the operation of implying freedom nothing more fruitful than it's market price.