I will not pass any judgement but as i feel its interesting to observe what finish/stop the EVIL.I will say not in all cases evil can abolished by LOVE..
in some cases same factor what finish evil can create evil too example
@ insecurity/afraid was the factor behind character ghangess khan ..
@ greed was the factor of invading the land and belongings of weak..
Hate can eliminate other hate to exist, but it will not eliminate evil. It will just be Evil A triumphant over Evil B.
Genghis Khan was driven by hate to eliminate the other's hate to become the ultimate hate.
Evil needs hate to exist.. eliminate the hate then evil will not exist. Only love can do that.
"
Tell me what is the objective of war? The objective of war is to conquer the enemy's heart, as long as the enemy's heart is not yet been conquered, the war is far from over"
-- Sun Tzu
"
But I say unto you, Love your enemies, bless them that curse you, do good to them that hate you, and pray for them which despitefully use you, and persecute you. "
-- Matt 5
Treat your enemy kindly.. conquer their heart.. by
first disabling them on their ability to inflict harm upon others or themselves and then help them to eliminate the hate within their heart through love and kindness.
A good (although not perfect) historical event for reference; was how the US treat Japan and (West) Germany post world war II.