Anyone is free to point a domain at a server and serve HTTP, in the sense that they are allowed to buy a server, domain and maybe software- in order to have a website.
A fair comparison could be done for a pamphlet or a book- you are free to pay a publisher/ printing press/ editor- in order to have a pamphlet or book.
Banning adblockers would not simply affirm this. It would go further and set a precedent that you, the publisher, can run arbitrary code or display arbitrary things on a user's screen; potentially against the user's wishes.