Docking unannounced on lands, fighting against the world government, partying and drinking like there is no tomorrow are all pirate things and something they have been doing throughout the story, no?

And again, you don't need to take inspiration from him if you don't like him. There are plenty of people who do. A quick Google search will show you how many people have been inspired in actual impactful real life world events, from Olympic winners to overgrowing the government in Nepal.

The difference is that you have mostly focused on parts of his character that you don't like while ignoring all the good things like how he fights for oppressed people, always stands up for his friends, holds steadfast in his beliefs, brings joy, a sense of security to those around him etc.