The supermarket analogy is complete crap. If the taxman correctly shuts the current club down, its supporters are not compelled to watch Saints, but are free to set up and own a new club associated with the city(and thereby be the owners she says they want to be). They just have no right to keep the status of the old one.
Supporters do not support football companies any more than they do supermarkets, they support the projection of their city or region through a football club and that could still be achieved.