walking away from your home when you can afford it is VERY UNETHICAL, but only because the taxpayers are now bailing out the banks because of it.

IF taxpayers were not involved in any way and the system was 100% freemarket, i.e. banks would take losses and shut down then I see absolutely no problem with walking away…it is between the borrower and the bank.

But because of the bailouts this is affecting everyone now so yes it is unethical.