I am not required to love people who want to murder me.
Jesus was not in a loving mood with the money changers in the Temple, when he walked in and grabbed them by the scruff of the neck and THREW THEM OUT INTO THE STREET.
Sorry .. but I refuse to buy this “love your murderer” stuff.
You say this, perhaps, because you don't understand love. If you truly love your children you don't protect them of the consequences of all their actions. You let them suffer those consequences that will prove a more effective teacher than a lecture or a rule.
Although God would have been justified to destroy those who were defiling His temple, He chose, insetead, to let them see a lesser wrath. To have preteneded it was all OK until after they died would have been unloving. Showing them in a forceful manner how important respecting God's temple is was a very loving act.