It's not a loss until it's realised....lol. Classic bagholder quote.
What you are sitting on are called unrealised losses. This is really basic stuff. Here you go .
http://www.investopedia.com/terms/u/unrealizedloss.asp
Think about it another way...when the stock was $8 you could have gone out to your bank and borrowed money based on the value of your holding. You could then have used this to buy a real asset.
Now with stock worth 8c you won't be able to borrow against your holding and your purchasing power has decreased. This is a real loss of purchasing power whether you want accept it or not.
Your last point really annoys me. As a holder of bank shares and not a holder of SGH why should the bank be expected to support this self-inflicted wounded company? All that does is redirect bank profits that should be coming to me and all the other holders of bank stock for the sake of a few holders in SGH and 4000 employees. Yet if this stock was to magically rally back to $8 where is the upside in it for the bank/me?
You're just another entitled brat who wants to privatise profits and socialise losses.