The lie about Iran isn't what the current regime is doing to its own people it's how, in response to the Iranian government nationalised the largely British owned oil industry, and so the UK and US sponsored a coup to topple the government and installed the Shah.

Although the Shah grew the economy and did a lot of other things to improve the country, the rampant corruption and brutal repression of dissent, including the massacre in Jaleh Square in 1978 (in which the army killed 64 people and injured 200+ others) sparked a nationwide revolution to overthrow the regime.

The largest and most powerful revolutionary faction were the islamicists led by Ruhollah Khomeini, the first Ayatollah.