Because they overwhelmingly don't

in your software computing ecosystem and of people you've had this discussion, they don't, but the computer magically replaces - with — in various places, so obviously some people do, in some places. And then you have nerds who still put two spaces after a period, or know the difference between ... and … Do they not exist either? The only reason you think that they overwhelmingly don't is due to your biased lived experience.

Logic fail. e.g., people overwhelmingly aren't trans, but that doesn't mean that there aren't trans people.

No one is claiming that they use em dashes overwhelmingly…