Its my data, I have no choice that it is collected...
I think you would find it a long road to prove that it was your data.
Just as in the same way big retailers (as many do) maintain data regarding their customer's purchases (of course they all sell that on to their felon mates ). Even small retailers will make a point of remember their frequent customers' buying habits (so data stored in their heads) and that is their data not yours. And so your local dairy owner probably phones his felon mates when you are in his shop buying your saturday newspaper too letting them know you are out .
I can imagine the legislation you would seem to want as being along the lines of "Retailers must not know what, how often, when and in what quantities they sell products to any customer". Could make a nice Monty Pythonesque script of a customer buying something and the retailer not being allowed to know what it was, how many, whether the customer was there or not nor store in his mind or anywhere else any of that information. Pr bably trickier than selling Monty Python parrots .
Is it true that most geeks are paranoid and conspiracy theorists ?