So apparently somebody got "dogpiled" for calling Luffy a "Terrorist"?
Because apparently people can't understand that, within the context of One Piece at least, being a terrorist (which Luffy absolutely is) is actually a good thing because the World Government is outright evil and that the guy didn't mean it in terms of "you should dislike Luffy". The Revolutionaries for example are very obviously terrorists and they are pretty much universally portrayed as characters you should like.
What I disagree with the guy making the video on with regards to this, is the idea that Luffy is "too stupid to understand" that his actions, whatever his intent may otherwise be, are political. I think Luffy understands that fine, otherwise we wouldn't have scenes like in Enies Lobby where he deliberately and openly declares war on the World Government by burning their flag. That's a very deliberate political message being sent by Luffy there.
Basically there's a fine line between not understanding and not caring about the politics, Luffy tends to veer towards the latter.