Is ecoterrorism justified?

No. Sure there are resources that we need. Maybe the fact that we do not know where these resources come from is why we do not make a big deal of it. I think that certain things need to be done as far as keeping the economy running and sustaining a certain life syle as needed. It is not okay to go around chopping things down or inhumanely killing dolphins because that certain culture cannot evolve and realize the harm that is being done. There is no reason to take out a forest just because some rich guy wants a log home to add onto his long list of residences. Be practical and human and smart, don't do something because of selfish reasons or because you want to impress your buddies. Use your head.