You are correct in stating God did not use physical violence while walking on Earth, because His mission was to redeem not condemn. Also Jesus is our example of Christian living.
You'll read in the OT that God is a God of War. And you'll read in both the OT and NT that God does not change. That does not mean we pick up our weapons and avenge ourselves. That's God's job, hopefully we agree on that. But how does God avenge His people? How does God inflict Justice to one nation? It is by whom God has put into authority and by whom what nation God choices to carry out His justice and punishment. It's all over the OT, Cobus, I am surprised you don't see it, and Romans 13 speaks of this very thing.
Jesus did not pick up a weapon to kill the body during His sojourn here on Earth, but he certainly described what he's going to do if nations/tribes/people don't repent.
Matthew 21:33-46
The Parable of the Wicked Vinedressers
33“Hear another parable: There was a certain landowner who planted a vineyard and set a hedge around it, dug a winepress in it and built a tower. And he leased it to vinedressers and went into a far country. 34 Now when vintage-time drew near, he sent his servants to the vinedressers, that they might receive its fruit.35 And the vinedressers took his servants, beat one, killed one, and stoned another. 36 Again he sent other servants, more than the first, and they did likewise to them. 37 Then last of all he sent his son to them, saying, ‘They will respect my son.’ 38 But when the vinedressers saw the son, they said among themselves, ‘This is the heir. Come, let us kill him and seize his inheritance.’ 39 So they took him and cast him out of the vineyard and killed him.
40 “Therefore, when the owner of the vineyard comes, what will he do to those vinedressers?”
41 They said to Him, “He will destroy those wicked men miserably, and lease his vineyard to other vinedressers who will render to him the fruits in their seasons.”
42 Jesus said to them, “Have you never read in the Scriptures:
‘The stone which the builders rejected
Has become the chief cornerstone.
This was the Lord’s doing,
And it is marvelous in our eyes’?[j]
43“Therefore I say to you, the kingdom of God will be taken from you and given to a nation bearing the fruits of it. 44 And whoever falls on this stone will be broken; but on whomever it falls, it will grind him to powder.”
45 Now when the chief priests and Pharisees heard His parables, they perceived that He was speaking of them. 46 But when they sought to lay hands on Him, they feared the multitudes, because they took Him for a prophet.
God used the Roman empire to fulfill this Cobus.
Matthew 22
The Parable of the Wedding Feast
22 And Jesus answered and spoke to them again by parables and said: 2 “The kingdom of heaven is like a certain king who arranged a marriage for his son, 3 and sent out his servants to call those who were invited to the wedding; and they were not willing to come.4 Again, he sent out other servants, saying, ‘Tell those who are invited, “See, I have prepared my dinner; my oxen and fatted cattleare killed, and all things are ready. Come to the wedding.”’ 5 But they made light of it and went their ways, one to his own farm, another to his business. 6 And the rest seized his servants, treated them spitefully, and killed them. 7But when the king heard about it, he was furious. And he sent out his armies, destroyed those murderers, and burned up their city.
Who do you think the king is here Cobus?
Why don't you go walk in the heart and nations of all the Islamic radicals Cobus, if your theory is correct you could bring peace to the world. The Devil would have flee from you and you could make peace and heal the nations.