using these products analogy is simply retarded.. crypto currency is closer to stocks than products like big mac, banana etc.
nope, (units of) crypto currency are legally property as is a big mac. Neither convey any legal rights other than under property law. Shares on the other hand convey rights under company law including a share of ownership of the actual brand. (look at it like shares are property with additional rights under company law, crypto currencies don't have those as they are just property)