I'll bet they wish they were already kings as well!
I'm pretty sure they already believe that - they certainly act like it. They teach that they were appointed over all the things that Jesus has authority over. Since Jesus said that all authority had been given him in heaven and earth, at the very least they consider themselves kings of planet earth - RIGHT NOW
The apostle Paul ran into the same sort of narcissists... nothing new. Just don't step in it.
[You behave as if] you are already filled [with spiritual wisdom and in need of nothing more]. Already you have become rich [in spiritual gifts]! You [in your conceit] have ascended your thrones and become kings without us 1 Cor. 4:8 Amplified Bible