Why is it legal for banks to sell customers' accounts/loans/mortgages to other banks? Should it be legal? If I take out a mortgage with First National Bank of Armageddon, why do I not have a say in if my mortgage can be sold to Bank Tartarus? What if I chose to go through FNBA because I think BT is a bunch of cheating tw@ts who do not deserve my business?

I have been mulling this over for several years and find it perplexing. The real estate market finally crashes; I think we may finally see some smarter minds than mine questioning the same things and yet, nada. Can someone please explain to me why we should continue to allow these robber barons to perpetuate such an obviously unhealthy system?