[@Penny]
Redacting knowledge goes both ways, not just for the positive. Genocides are denied but well, they're still there. 

[quote]I applaud Bill Nye for using the social constructed term gender in a more nuanced way.[/quote]
Literally all terms are socially constructed. At that point anyone can use any word as... anything. If people want to change definitions there should be some grand meeting of Anglophone countries to agree on what means what and if anything in English should be changed, and this should be announced on like every news outlets rather than people getting upset over [i]certain things.[/i] This is particularly hard for all sorts of old-timers and people who don't really want their language changed because it's an element of their culture/heritage, like a whole lot of Norn Irelanders.