thats okay - but this is like paying for music/porn to be taken away from you. A big part of the equity you got when you signed up and paid for has been taken away but you are still paying the full price!!
Cars notoriously devalue over time. Are you saying that the bank is stealing money from you because you new car dropped 10% in value the moment that you drove it off the lot, but you are still paying the bank for a loan of 100% of the original value of the car?
But they did, they took you loan packaged it with poop and sold it to the after market. They gave loans to people who could not afford and when it all cam crashing down they lobbied for bankruptcy law changes to make it difficult to absolve yourself from the debt and they lobbied for your tax money to bail them out of the bad speculations that they made on junk loans. All of this affected your mortgage and the underlining assets value. Now they are stable, they expect you to hold up your contracted obligations which you are free to make your own decisions on, but to say that they did not do this is wrong, they just did not do it in the contracted terms of your contract.