I'm arguing that it isn't a strong analogy, not that it isn't an invalid analogy.
Fundamentally, people expect to be able to reach me by phone, and there are times when I want to be reached. I can even tell me phone to only allow a short list of numbers to make my phone ring.
On the other hand, going to a web site means I want something from them, and their analytics are part of what they take as compensation.
You argue, I believe, that "going to the mall" becomes similar to "going to a web site." By picking up my prescription at the mall pharmacy, I implicitly grant the mall and (I presume) other stores in the mall knowledge about where I go. I suppose the same would apply if my hypothetical daughter went to a Planned Parenthood office in a shopping center.
And in some sense, you are right. They already track us, with cameras, with staff, and even with consultant anthropologists. The issues are: how much tracking is appropriate ("retail vs. wholesale surveillance" as Schneier terms it). What are the social tradeoffs, especially when there might be no real alternative to using one of the stores in the mall. (And why do so many stores ban photography while asserting the right to photograph us?)
But they don't track us with the devices we use to contact others, who have nothing to do with the store. That would be (to use yet another analogy) like a web site asking you to install a plug-in "for great discounts!!!" but which also tracks all others sites you visit? (Presume that that tracking is mentioned in the fine print.)
In your analogy, is "the mall" really like "a web site" or like a "web hosting company"? I go to a mall to visit stores, and don't care so much about the mall itself. So "the mall" would be the "web hosting company", and the individual stores correspond to a web site? As someone who has a hosted web site, I would be uncomfortable if my hosting company started doing per-person/per-page traffic analysis other than what I've set up for my own use, and would really not like it if they shared that information with other web sites also hosted by the same company.
Of course, some hosting sites might do this, but in the physical world it's harder for a store to leave the mall if it feels like the mall is doing the wrong thing.
So while you can make the analogy, it doesn't feel like a strong one. Why not just argue this case without analogies?