Are you suggesting that the CIA was worried about democracy in Iran so they ousted him to give the absolute power to the king?
It turns out that Iranians have agency of their own and don’t just do whatever the CIA tells them to do. In fact the role of the CIA in the 1953 coup has been deliberately overstated by multiple sides, including the CIA itself: https://web.archive.org/web/20150603235034/https://www.forei...
But even if you still want to blame the CIA, they still needed enough supporters inside of Iran who were angry at Mossadegh, and one of the reasons they were angry at Mossadegh is because he had turned himself into a dictator.
Edit: I replied before you edit your comment
> The CIA and US media propaganda spread false reports about the situation then and still to this day. i.e this article you attached is a pure piece of western propaganda.
That claim is completely inconsistent with the CIA and US government repeatedly and publicly claiming responsibility/taking credit for the coup.
The more interesting one is how often a democracy can survive against democratic superpower wishes. I.e, during the cold war era, the US helped taking down more democratic governments than the USSR itself. That is a bit of ironic remark. People tend to forget that the US didn't like democracies outside its sphere of influence in the last century.
I am sure this legacy gets blind eye when people usually talk about democracy and why many people doesn't like it. The scars are still alive til this day (Iran is the prime example here).