We can stop using it, and create or support alternatives.

We're used to the cost of a service being its monetary price, or more recently, the demands it makes on our attention. Perhaps a new type of model is being developed in which the price of a service we desire is not in the form of money or attention, but our data. And in this case the way a company uses our data is a real "cost", rather than a mutually beneficial outcome.

I think that threatening to withdraw and withdrawing payment, whether monetary or otherwise, will prove to be a significant balance on the actions of companies. If the changes are significantly detrimental, consumers will take the actions they consider necessary to address those concerns.