Yes, Mosaddegh tried to be a usurper indeed.
The Shah held his position from 1941 until he was deposed by that disgusting “revolution”.
So a democratically elected leader is a usurper, and a dictatorial monarch planted on his throne by foreign powers is legitimate... that’s a very interesting moral framework you are proposing here.
Such strident opposition to representative, constitutional government makes you very out of place. In America, our tradition is to greet proposals of monarchism with grapeshot. Perhaps you will be better served by seeking allies among those who share your point of view, such as the Saudis.