Depending on where you live, a lot of times you don’t many to choose from. Maybe 2-3, but sometimes only one with fast enough speeds that it becomes the only option.
We're talking about participating in society not Netflix. There are a lot more options for that, including mobile and even good old dial up.
So they are effectively utilities and must be regulated accordingly.
Where?
Cellphone providers + Starlink mean there’s more than 3 options in basically every US home.