“We” didn’t remove the Shah, we put him in power.
Yes, we did put him in power. When Jimmy Carter became President, he preferred the Ayatollah Khomeini instead of the Shah. So, in essence, we did remove the Shah. The Shah departed Iran on the 16th of January 1979. The Ayatollah Khomeini arrived in Iran, 20 January 1979. Nothing has been as peaceful as it was previously to that point.