In short: the point I’ve been trying to make here is that, violence is always undesirable and if you are a monk you make vows of renunciation to give up this world and thus you have more favorable conditions to carry out that practice.
However, that might not always be the case for lay people. Lord Buddha was clear on this so I don’t see why there is a confusion about it. Buddhist countries are known for loving martial arts and they have very intimidating and disciplined armies.