ISP's are not common carriers and have lobbied for decades to not be treated as common carriers because then they can't do deep packet inspection and they must

ISP's are not common carriers and have lobbied for decades to not be treated as common carriers because then they can't do deep packet inspection and they must sell equal service to anyone. If a drug smuggler drops a package in a mailbox the postal service is legally obligated to deliver it and not look inside (assuming it doesn't smell or tick). An ISP finds out someone is sharing their wifi with their neighbors, the ISP can cut service b/c of breach of terms of service.