Pagan gods (lowercase) predate God (proper noun)?
"In the beginning God created the heavens and the earth." (Genesis 1:1, NIV)
"In the beginning was the Word, and the Word was with God, and the Word was God." (John 1:1, NIV)
That is the joke of "modern" paganism. Even the Greeks believed in Zeus, the Romans in Jove, and the American Indians in The Great Spirit (a.k.a. The Creator a.k.a. The Creator Spirit).
Sure, there are parallels, messenger lesser gods like Mercury and messenger angels like Gabriel. But I hardly believe these somehow disprove monotheism in favor of polytheism. In fact, I believe they prove the opposite. Remember monotheist prophets such as Noah, Abraham, and Moses walked the Earth after the Greek and Roman gods had long left.
That said, where is the formal structure of said pagan theology and denomination? Without it, it is just a bunch of rebellious 20 year olds who rebelliousness should give pause to their proposed careers as military officers.
Take a good, long, hard, honest look at the Voodoo cults in Haiti and Louisiana and the pseudo-Catholic practices in Mexico and Central America.
That's how pagan god worship begins. Foolish people reject the true God because they want to do their own thing; demons tickle their ears with what they want to hear.
Melkor, I hope you are ready to spend eternity with the things you chase. When reality sets in, you will find it unpleasant. You still have time, but nobody but God knows how much.
Want to have fun? Shake your fist at heaven. Demand the true God to reveal himself. Shout at Him to prove He exists. If you're looking for excitement, I promise you that you won't be disappointed. Believe me; I know.