Comment by dragonwriter

There's enormous precedent around the whole scale from public discrimination to privately owned public (government) forums to private discrimination in special critical circumstances (common carriers, employment, and housing), to private discrimination in businesses that are public accommodations generally, and mountains of statute and case law specific to each.

And, in each of the major categories, the law has already been applied on the internet.

While the specific scenarios may have some novelty, the general issues are not new with the internet.