I think we need to do some really difficult investigations that essentially can show concrete proof of how this affects people:
"See you were looking up vacations and insurance right? Well you signed up to your car's connected service, you have an Alexa in your house, and a smart TV and a fridge all talking to each other....and they all worked together to put together a profile of how much you make and how old you are and everything else...
...so your neighbor looked up the same insurance and vacations and is paying about $200 less for the exact same of each, because they use AdBlock and don't allow spy devices in their house."
And then finish with the real kicker:
"I know you didn't ask to participate, but we just scraped all this information about you off the Internet and didn't even need to ask you. We had to ask your neighbor to participate though."