That would be misrepresentation. Even Stallman isn't OK with that. You can take one of his opinion pieces and publish it as your own. Or you can attach his name to it.
However, if you're editing it and releasing it under his name, clearly you're simply lying, and nobody is OK with that. People have the right to be recognized as authors of things they did author (if they so desire) and they have a right to NOT be associated with things they didn't.
> At the end of the day it’s very gross when we are exploited without our knowledge or permission so rich groups can get richer.
The second part is the entirety of the problem. If I'm "exploited" in a way where I can't even notice it, and I'm not worse off for it, how is it even exploitation? But people amassing great power is a problem no matter if they do it with "legitimate" means or not.