The problem here isn't the politics, it's the mission creep. Libreboot has clear techno-political goals, to free our hardware from the shackles of BIOS and UEFI.
It wasn't created to serve as a vehicle to protest a case of alleged sexual discrimination against a friend in a different project.
There are many ways to protest at perceived injustice, but I don't think derailing a volunteer project to do that is good for the movement as a whole.