"It does make the job more unpleasant for them since they will get shouted at if they don't make enough sales"

Really? Not if it's something that happens to all the telemarketers

"Surely it would be better to show some sort of solidarity"

I'm open to suggestions. 'Solidarity' is a word that drives me up the wall because it seems like way of saying 'do nothing, but feel smug about it'. But if you have practical ideas for how to make their lives better, fire away.