Honestly, too many. Software engineers can be really, really dumb. I think it has something to do with assuming they're really smart.
But even unwilling developers may be forced to participate (see the recent Shopify CEO email), despite knowing full well what's going on. I mean, tons of people have already had to go through the humiliation of training their offshore replacements before getting laid off, and that's a much more in-your-face situation.