Byblos:
They were evil because they love to rape and kill innocent people
Romans did the same - how many villages and settlements did they burn down? How many slaves did they make? How many were crucified? Burned? Slaughtered in the Colosseum? If they were "civilized" - then only in a very effective "civilized" way to perfectionize murder.
Kiya
Not all were nomads - Romans killed "barbaric" settlements as well. And if you would look up my link => the Ancient Chinese considered all Europeans as barbaric - including those who were settlers and lived in cities. So, the original meaning was changed very quickly. "Barbaric" is simply a way to differ between those who belong to the same race, tribe, empire etc. and those not. And I'm sure, the Greek considered the Romans as highly barbaric, as they didn't show interest for the Ancient Greek style.
See? Barbaric is relative <img src="/ubbthreads/images/graemlins/winkwink.gif" alt="" /> - young Barbarian warrior Byblos <img src="/ubbthreads/images/graemlins/winkwink.gif" alt="" />