It is a stretch to find support for this kind of behavior in the teachings of Jesus, but it has been done. I've heard people within the last week on television say that war can be justified by Jesus' driving the moneychangers out of the temple. I find this a stretch.
I say every time I get the opportunity that goodness and evil are properties of individuals rather than ideas. Of course cultures that have stupid beliefs are more susceptible to being led by evil people. that is why we say "those who believe absurdities will commit atrocities."
Jesus' action at the temple has nothing to do with what we are discussing. However, Jesus said, "all authority on heaven and earth has been given to me" - on that basis -- the basis that He is God in human flesh -- He has the authority to judge people. That being said, he did not kill them did He (even though He was justified in doing so since the money changers were ripping people off in the name of God!!). His anger was a RIGHTEOUS anger. Whoever told you this is an example of violence has a horrendous understanding of the New Testament.
Now that your single objection has been dispensed with, please tell me -- where in the New Testament (the single authority for Christ's teachings) does it teach us to murder and kill in the name of God. If you can't produce it, then perhaps you should change your opinion to correspond with the truth? If you refuse to do that, then I must assume you are operating on uninformed bias.
This statment you made makes no sense. If evil is not real, what standard are you using when a person commits an evil act? If evil and goodness are not objectively real, then there can be no standard with which to judge an evil act. In fact, there can be no such thing as evil unless you are calling it evil as measured against a standard of goodness