Again, that makes 0 sense and for more than one reason. Maybe seek a church that ain't so bigoted and twisted if this is what they're teaching you.
Revelation 17:10 refers to the kingdom "that is", which would be the ruling kingdom during the writing of the book of Revelation, which would be the 6th head of the beast. The book of Revelation would have been written during the time of the Roman Empire, just after the 10 horns (Daniel 7:25), with a parallel reference to the 6th head of the beast in the form of the Augustus Caesars. We are now in the era of the 8th head of the beast (Revelation 17:11), as shown by Hitler's 3rd Reich (3rd Roman Empire). Your story of jumping ship when you were 20 on bigoted grounds, reminds me of other people who take up the Catholic religion, or even the Amish religion, or even the Protestant religion, in order to calm their own beast, and marry someone who demands they get on another horse, or live without them. Their leading spirit is normally one of the flesh. This seems a worldwide phenomenon. People who call others "bigoted", often are trying to justify their own errors. I don't think it works out like you would hope.