That dehumanizing attitude is extremely common in first-world "social justice warrior" circles.
They consciously and deliberately use shaming and bullying tactics to intimidate others into silence. They acknowledge this constantly, especially on Twitter when their bullying victims ask why the "social justice warriors" are being so cruel.
Their answers are typically something like, "We need everyone to know that being a fucking asshole like you will mean everyone will mock and hate you."
These activists are quite literally bullies. It's extremely important that we continue to stand up to them.
Guy shoulda just let it blow over. Esp when project lead accepts the patch, he doesn't even have a canine level of sociability. Woof.