I mean that is sort of the definition of justified but it’s being misused here, it just means having a good reason. Everyone is ignoring how subjective it is though. Bob may consider his life above others, so for him staying alive is a good enough reason to commit murder. Jane and a jury are very likely to disagree.
Different language needs to be used I think to avoid the issues people have with the concept of violent resistance.
Peace isn’t an option because injustice still happens under peace time. Liberation is a better solution for the oppressed.
So now we’ve got:
Liberation of oppressed peoples from oppression is always justified.
This focuses more on the end goal than the action that resistance implies. Liberation can still involve violent resistance and that’s okay. You can be on the side of righteousness and still do what is morally wrong, this is true of all movements.
We have to agree that liberation from oppression is always morally good and we have to apply it to all cases. So if we don’t look at the Palestinian struggle the same way we’d look at indigenous issues in north America or apartheid SA, we’d be hypocrites.