It seems to me that if one of these measures ever passes, properly peaceful activists should arrange a similar 'experiment' on a larger scale.
See how the ISPs like it when they need to shut down half their customers. See how willfully oblivious the people are willing to be, when they and their neighbors are getting strongly-worded letters telling them that they are assumed guilty of criminal activity.
That is the sort of creative demonstration that will really help throw this stupid idea out. Go Talk Talk!