[zdragnar]

The law isn't nearly so cut and dry as that. After all, if something operates as a business, and also has a brick-and-mortar storefront, then it is also liable to accessibility guidelines per the ADA (see the lawsuit against Target a few years back).

As such, publicly accessible websites are, in effect, no less common areas than storefronts.

Of course, there's a way around this; websites could establish 'membership requirements' such as using a browser that does not have an ad blocker enabled; the content for most of the website would require being a member and volunteering to abide by membership rules to access. Violate those rules, and you would risk losing your membership and access to the content, though I seriously doubt grounds could be established for a lawsuit over it.