For the first two examples, that's obvious. But even the pirate image is one that people can jokingly laugh about how some criminal activity was justified for white people to get ahead. For the images of Native people, it's very different. This precise image was the one conjured up by the engineers of western expansion in North America to justify genocide. It all fits the racist image created centuries ago to rationalize slaughter.
Racism has to be confronted on ALL levels.
The way that is enforced is through subtle stereotypes and vague beliefs that often require much thinking through before they are discovered.