The biggest black-pill of the Bible in Christianity is that Satan is allowed to have his way and his army gets to persecute Christians, and that Christians are the only group going to be attacked. And by the time he has been defeated or subdued, everyone is no longer on this earth anyway, but up in the sky in Heaven. God may have ultimately "won" in the end, but everything we worked on down here had to be destroyed by Satan and his legions has still been erased and will not be started again.