I think in this case it's a question of why there isn't more competition. Clearly if Comcast's charges are unreasonable or capped at an unreasonably low amount

I think in this case it's a question of why there isn't more competition. Clearly if Comcast's charges are unreasonable or capped at an unreasonably low amount it should in theory be corrected in a marketplace where customers can flee to a competitor who isn't fleecing them. Except obviously they can't where Comcast enjoys a monopoly, is fixing prices with other competitors or prices are set externally by a "regulator" unanswerable to consumer groups. I don't think framing this as a net neutrality issue will get you very far - it's clearly monopolistic behaviour and you should be writing the DOJ looking for antitrust proceedings ...