The Watchmen comic can be seen as inappropriate by some, especially for younger audiences, because of its violence and philosophical complexity. But for adults who enjoy deep and challenging stories, it can be a masterpiece.
It depends on your perspective. Some people might find it inappropriate due to its complex and sometimes dark themes, but others might appreciate its depth and social commentary.
I wouldn't say it's inherently inappropriate. It presents mature and thought-provoking content that can be valuable for those able to handle and engage with such themes.