The supposed smartest guys out there pretending that it takes time and effort to remember when someone wants to be called by different pronouns than the (also made up) ones they were using before. Give me a break.
Also the AOC tweet he's responding to is misinfo lacking context
Pronouns probably weren't sustainable because they were a demand on people's time and effort. Suddenly everyone was expected to do this thing that they never had to do before, just to...signal solidarity or something?
Americans' default answer to demands on their time is "No".