I don’t think that the issue is that people don’t know; people don’t care. They don’t understand how horrible the loss of privacy is, and think that the marginal convenience of being able to control your thermostat from your workplace, or have your refrigerator add milk to your shopping list outweighs the negatives of them being turned into botnets, or monetizing all of your data to squeeze every last penny out of you.
What’s really maddening is realizing that secure spying is still spying.