When you say that God cannot do it for that would be contrary to His nature and character as a loving God then I challenge you to explain how following fit your definition of love.
God striking dead on the spot men who touched what was holy.
Sending men into other nations to kill the people and take their wealth.
Sending the king of Assyria to execute His judgment of Israel, removing them from the promised land and scattering them into other lands.
Sending Babylong to execute judgement on Judah, destroy the temple, giving its gold and silver to His enemies, and walls and gates and scattering the inhabitants abroad away from the promised land.
Sending His own Son to the cross.
Destroying all the wicked in the land.