Gee... that is why Christians will be raptured first and then the revealing of the Antichrist.

It's in the Bible:

[2Th 2:6-8 ESV]
6 And you know what (Holy Spirit) is restraining him now so that he may be revealed in his time.

7 For the mystery of lawlessness is already at work. Only he (Holy Spirit) who now restrains it will do so until he is out of the way (the rapture, catching away).

8 And then the lawless one (Antichrist) will be revealed, whom the Lord Jesus will kill with the breath of his mouth and bring to nothing by the appearance of his coming.