If we citizens don’t apply the pressure, nothing will happen.
And if your cynical about doing that, try it anyway, just as an experiment, to see what happens. Hell, even make a YouTube video about your experience doing so, for content.
Just say "Please let my representative know that I am in favor of the Bernie Sanders bill (Thirty-Two Hour Workweek Act) for a 32 hour work week."
It’s just a phone call. A 32 hour work week is worth a single phone call, right?