This part I agree with you, as I often see horns in regards to the power of a kingdom.
Ten horns however, do not represent the power of all the kingdoms in the world.
If you read Daniel 7, you will see there are four beasts, the first three of which have none of their horns (military powers) mentioned, whereas the fourth beast has its ten horns described.
If you read Daniel 8 you will see a he goat with a notable horn who after defeating Media and Persia (Iraq and Iran), its notable horn is then broken and secedes into four horns (military).
Noting the association with the ten horned beast in Daniel 7, we then see the ten horned beast in Revelation 13 described as having seven heads.
Prior to the he goats notable horn seceding into four horns, the beasts 7 heads would have comprised of seven horns. Upon seceding into four horns, these seven heads to the beast will then comprise ten horns.
Ten horns however, do not represent the power of all the kingdoms in the world.
If you read Daniel 7, you will see there are four beasts, the first three of which have none of their horns (military powers) mentioned, whereas the fourth beast has its ten horns described.
If you read Daniel 8 you will see a he goat with a notable horn who after defeating Media and Persia (Iraq and Iran), its notable horn is then broken and secedes into four horns (military).
Noting the association with the ten horned beast in Daniel 7, we then see the ten horned beast in Revelation 13 described as having seven heads.
Prior to the he goats notable horn seceding into four horns, the beasts 7 heads would have comprised of seven horns. Upon seceding into four horns, these seven heads to the beast will then comprise ten horns.
The word four many times represent north, south, east, west as to the whole world . 400 hundred years the time between the promise to Abraham and the bringing out of the nation of people God would use to temporally represent Him not seen. 40 years all the suffering in the wilderness. 40 days that in which Christ suffered to begin his ministry. The four living rivers of water going out from Eden to represent the gospel going out to the whole world.
The ten commandment represent all. The ten lepers that were purified by the work of Christ's faith as a labor of his love represent all Christians.
Note.. . what I find as interesting is the word eighteen comes from the Greek word, deca, meaning ten or all. Go figure?
The eighteen in Luke represent all .
Luke 13:4Or those eighteen, upon whom the tower in Siloam fell, and slew them, think ye that they were sinners above all men that dwelt in Jerusalem?
Luke 13:11And, behold, there was a woman which had a spirit of infirmity eighteen years, and was bowed together, and could in no wise lift up herself.
I think the word tithe, which represents all could be added . God does not desire ten percent but all . Ten a good place to start.
Ten in multiples of hundreds and thousands are used in that way to hide the spiritual unseen understanding throughout the scripture . In Genesis below ten is used again as all those who are led by the Spirit of Christ, as sons of God.
And he said, Oh let not the Lord be angry, and I will speak yet but this once: Peradventure ten shall be found there. And he said, I will not destroy it for ten's sake.Geneisis 18:32