Genuine question, why are you mfs so far up your own asses that you have to oversimplify everything one piece does? It’s so cringe holy shi. How are you going to look overlook the dialogue, workd building and the entire foundation of what wg, cd and monarchs have done throughout the series.
There’s been more than “killing innocent people is bad” There’s institutionalized slavery, censorship, propaganda,discrimination hereditary and many more that have been developed in the series one after another.
What's funny is that One Piece doesn't even contain particularly complex political theming beyond "killing innocent people is bad", something almost universally agreed upon.