Those who refuse to learn from the past are bound to repeat it.
So tell me when did Jesus Christ tell us that it´s right to kill others?
When did Jesus Christ tell us that we have no right to self-defense?
May I remind you of Matthew 5, 38-48 ???
38"You have heard that it was said, 'Eye for eye, and tooth for tooth.' 39But I tell you, Do not resist an evil person. If someone strikes you on the right cheek, turn to him the other also. 40And if someone wants to sue you and take your tunic, let him have your cloak as well. 41If someone forces you to go one mile, go with him two miles. 42Give to the one who asks you, and do not turn away from the one who wants to borrow from you. 43"You have heard that it was said, 'Love your neighbor and hate your enemy.' 44But I tell you: Love your enemies and pray for those who persecute you, 45that you may be sons of your Father in heaven. He causes his sun to rise on the evil and the good, and sends rain on the righteous and the unrighteous. 46If you love those who love you, what reward will you get? Are not even the tax collectors doing that? 47And if you greet only your brothers, what are you doing more than others? Do not even pagans do that? 48Be perfect, therefore, as your heavenly Father is perfect. ..."