I agree that people should try to be kind and charitable to each other, and this conversation didn't show that.
That said, I think we also have to be cognizant of the way "civility" is not objective/neutral, often relies on codifying the norms of a dominant majority, and also preserves the status quo.
It might not have been very "civil" for instance when Google employees walked out of the office, but I also don't think it was "civil" when Google paid $90 million to someone fired for sexual harassment.
Sometimes big problems can't be met just with civil discourse, it's why many of us still voted for Biden (for instance) even after he told Trump to "shut up."