In the Bible there is a thing called the Tribulations. I believe it started around last year. Basically it’s 7 years of things getting progressively worse and worse all around the world. However it only starts when Satan reveals himself. I think it doesn’t have to be a person per se but a series of events. And since there has been serious events one after another we could be in the end times. Once the 7 years are up Jesus comes and fight it out with Lucifer then claims his new kingdom.
The non believers and people aren’t Christlike gets saved first because they were lead astray from God. God can’t blame those people for being corrupted. Christians are staying longer to witness.
But to be honest I’m not afraid. There might be doom lurking but we have no choice but to face it head on. Unfortunately we are stuck on this earth together.