There is ample thought that the Messiah will destroy the wicked among Israel, although the hope is that the Messiah will inspire the repentance of the wicked.
Best advice I can ever give you regarding “Messiah”. Any world leader who claims he is the one - Do.Not.Believe.Him.
Believe your two witnesses (Elijah & Moses or Enoch)
See verses:
Malachi 4:5
Deuteronomy 18:15-18
Zechariah 4 (specifically 4:14)