I don't really think this is as complicated as you're making it in this case. The regulation should be that ISPs are to simply pass along data that comes their

I don't really think this is as complicated as you're making it in this case. The regulation should be that ISPs are to simply pass along data that comes their way. If they fail to do that by impeding certain traffic, they should be fined or in egregious cases jailed. No different from how you'd fine or jail something like a restaurant owner for violating health codes. You would expect a restaurant to serve you clean, un-tampered food; likewise, you should be able to expect your ISP to serve you data and to not tamper with it.