That is what Dover is now, in public ownership. We are going back to Thatcher's old trick of selling people what they already owned.
Still, mutualisation is obviously better than globalisation, the sale into foreign hands of a key point of entry into this country. If the Conservative Party were even vaguely conservative or Tory, then it would understand that implicitly, and it would recognise public ownership as the solution, therefore to be left exactly as it is.
NHS Direct is also a mutual. If you want to save it, then join it.