If they where capable of doing so they would realize that often the discomfort experienced by the minority fraction of readers does not at all outweighs the investment needed to accommodate them.

Yep, I agree and specifically acknowledged that possibility. In this case, my current guess is that it's not worthwhile for lukeprog to rework his video, but it would be worthwhile to spend a few minutes thinking of gender if he was to make it again.

I've seen people on the internet use "white knight" to refer to men who take the pro-female position in gender-oriented online arguments. Is this just namecalling, or is there a technical difference between "white knights" and men who favor the pro-female position on collective utility maximization grounds?