You seem to be starting by saying it’s not an issue of double dipping, and then go on to describe something that is quite explicitly double dipping, but it’s totes ok no really.
I’m not sure if you just don’t understand the words people are using here or if you are being intentionally disingenuous.
Considering you also keep claiming that it’s not a net neutrality issue immediately before and after describing how it is a net neutrality issue, I’m assuming its the second.
They are charging their customers money to provide them access to various chunks of the internet, and then charging those various chunks of the internet for being accessed by their customers. In what possible way is this NOT double-dipping?