Besides the idea is as ludicrous as the prophets of Baal thinking they could prevail (hey I’m a poet and don’t know it). If God is with us who can be against us. They are not going to be able to stop Christ. What we CAN do, and it does not matter what the shingle outside the church door says, it goes for all, is to clothe ourselves in Christ. Let Him be our strength, our energy. He is bent on saving what is possible to save. The fury of Satan? Christ laughs at it. The devil was whipped when Jesus was flogged.
Satan is indeed an already defeated foe.
We are to be salt and light. Jesus said that His children are the salt and light of the Earth. Anything more is a waste of time.
No one has any legitimate claim to Temporal Powers. We win souls and pray until He returns.