But what I hear you saying is that society should not allow people to enter into agreements that would be conditional on what they use that service for, is that right?
If so, I strongly disagree.
I should be allowed to enter into agreements based on how I behave, and I expect people I enter into agreements with to abide by what they claimed they'd do, including if they agreed ahead of time that it was up to me to evaluate their behavior and judge for myself when to stop allowing them access to my service.
To deny me this right would be a violation of the concept of ownership, which I believe is a critical aspect of modern society.
This is a different discussion if you don't think people can own things (which is a fair argument, though I would have disagreements as well).
A service can today kick you off without your having ever violated the terms of use they publish.
To answer your question, our society presently restricts several types of businesses from either offering or not offering service to certain groups in various circumstances. This wouldn't really be any more of a stretch than preventing the electric company from denying you service.