"There is no concept of monarchy in Islam," says this video at 2:10, while talking about Saudi Arabia.
https://www.youtube.com/watch?v=j7rx23rgZ5c
https://www.youtube.com/watch?v=7y-dy9HPkIY
https://www.youtube.com/watch?v=nkY_DQB-xrI
https://www.youtube.com/watch?v=NEISZzPK_K0