[Azeolus]

Building a wired network to residences is prohibitively expense. So much so that the only way cable was originally run was by the government heavily subsidizing it. In return for their investment cables companies received local monopolies on their service. DSL became a thing because the phone company already had access to the house, thus only the cable company and the phone company was allowed to run physical wire into your house.

So, today we'd have to repeal these monopolies, and then new companies would have to run all new infrastructure, or somehow get the incumbents to allow new companies to use their infrastructure, which is unlikely.

Frankly, new highspeed wired ISPs are highly unlikely, what we'll probably see is wireless because it's more economical to install.