Of course you believe in loyalty to corporations...
Do you drink Coke or Pepsi? Dewars or Jack Daniels? Drive a Ford or a Chevy? Stay at Hilton or Westin? Target or WalMart?
We all have preferences, prejudices and personal requirements. Delta suits my travel needs 99% of the time. I have over 1M miles in my account and don't care if I use them at all. Vote with your feet, go to what you like and need. But for me, as a Southerner, we drink Coke and fly Delta.