>>713119791Honestly, no, craftworld eldar are not good guys.
They haven't done anything about the black cruades. They haven't done anything about the rift. They refuse to do anything about the necrons.
Whenever their children get angry, they're kicked out and told to be pirates for several hundred years and to come back when they grow up. If you complain that they're starving entire planets, causing a chaos cult to take over a planet or aiding the current black crusade, it's "Not my problem".
Some of these children decide to become straight up dark eldar. Is that a problem for craftworld eldar? No. They're friends.
And then because the T'au are the Eldar's pet project, their proxy war race, you know neither of them are the "good guys" even before you ask how genocidal the T'au are.