That cat is already out of the bag. Companies already sell MitM services to companies that want to monitor and filter the web traffic of their employees. I su

That cat is already out of the bag. Companies already sell MitM services to companies that want to monitor and filter the web traffic of their employees. I suspect there are already niche ISPs out there that cater to the content-blocking impulses of certain customers by doing deep-packet inspection and firewalling at the gateway.