WORDS USED AS WEAPONS.
The thought occurred to me that the phrases we are discussing (and others like them) illustrate how words are used as weapons. The exact same emotions and motivations can be described as "concern for fellow human beings" or as "white guilt," (2) being an "outspoken activist" or being an "angry black man," and so on.
So, perhaps, we are not framing the question properly. The real issue may not be whether motivations and actions exist (they do) but rather why some choose to describe them one way, while others choose to describe them in a different way. This seems to be another case where precisely the same motivations, deeds and speech can be characterized as a positive, as neutral, or as a negative. In the same way that attributes of individuals or cultures can be portrayed as positive, neutral, or as negative -- depending on the perspective of the person doing the describing and the emotion-laden words he chooses to use.
The second point to recognize is that prejudice can play a role in the descriptive words selected.