You are absolutely right. Even at the very end of Christ’s Millennium reign there will be those who thumb their noses at Jesus and follow satan who has been in the bottomless pit and let loose for a little while. But Jesus squelches that in short time. . .but enough time for satan to go to the four corners of the earth gathering some followers . . .who with satan end up in hell with the anti-Christ and false prophet.
You’d think that living in a perfect environment with a perfect leader/ruler would convince people to follow Christ.
Some people are just too incorrigible and are beyond redemption.
One can only imagine the depths of their condemnation. To whom much is given, much will be required.