As we know, rms is a very dear person to most of the Computer Science and programmer community.
Through the years, he's said many shocking things. We've often disagreed with him. He's been extremely stubborn.
At some points it's been comical.
Yet we still see him as a technology treasure, and we should keep this in mind before judging him harshly based on a single e-mail.
rms is actually reacting logically here, yet also emotionally as he's wanting to protect his friend - the late Marvin Minsky. Seemingly by letting go of common sense, and sure enough this is just cause for harsh criticism.
But by simply removing a living legend from his position because he's not able to be politically correct, is far worse in my opinion. (I assume he was asked to leave).
This same lack of political correctness also happens to be one of his strengths. It built his character. It's not perfect.
I don't know what more to write at this point. It's ridiculous and turning into a witch hunt against someone we actually owe a great deal of gratitude.