You don't need to hate an enemy to not allow them to destroy creation, why you keep insisting that we must "beat the shyte out of them or kill them out of hate" in order to neutralize a given situation (without disturbing the principle of love) is rather immature and strange.
You can defend against an angry child (not an enemy) without harming them.
You can love an angry child (not an enemy) and keep them from wreaking havoc without resorting to violence.
I understand what you mean in this case.
HOWEveR, a group of mafiosos with guns is another case altogether.
You have to understand that many Jews believed Jesus (the Messiah) was going to free them from the Romans.
Many believed Jesus would lead a violent revolt that would destroy their oppressors.
Obviously this never happened.