Back in Jr. High or high school I figured terrorism was acceptable as a means of fighting - using the limited resources that one had.
I think I probably confused it with guerilla fighting - where one is attacking a military force, and not raping women and burning babies or flying airplanes with citizens into office buildings.
Yes, there’s a world of difference.
Terrorism is inflicting chaos, anarchy, and terror though destruction, torture, and murder for the sake of it.