The claim isn't exactly that: "A transgender employee at the FSF was being harassed by a transphobic colleague for being trans. The trans person, not the bully, was then fired when they stood up for themselves, because it was seen as trouble making while the bully remained silent."

Your source for that is from Leah Rowe who has proven in this situation to be untrustworthy. Read the discussion on `gnu-prog-discuss`[0]. The employee being trans was not the issue.

[0]: https://lists.gnu.org/archive/html/libreboot/2016-09/msg0003...

Yes, my source for the claim is the author of the claim. And I cited it to point out that Leah Rowe doesn't claim that just being trans was the issue, but that it was the fact that the employee spoke up against the bullying.

It makes no sense. FSF treats employees better than most companies and are very open minded as well. It is very progressive and open to GLBT people, etc.

I think it is some sort of politics, like trying to attack Linus because he rejected some SJW's contributions to the Linux Kernel because it caused a Kernel panic and asked if she bothered to test the code before submitting it. Then he is accused of being sexist towards her because he used cuss words.

Didn't Linus say something along the lines of "I don't care about your gender, ethnicity, sexual orientation, or whatever else, except the code you submit"? That seems to be his attitude toward such things.

That seems unlikely. For one thing, Linus and all that would have been mentioned.