This thread is full of a bunch of too much whiney nonsense. Of course it's not fair. It is what it is.
You want to get into endo, or rheum, or renal, or pulm crit and want to take a year off, I think you'll still find fellowship, but not at Penn or UW or UCSF, etc. You've taken the top academic spots off of your list effectively taking a year off. Which may or may not be a big deal. Though it is also at the bigger academic places where they will being seeing the weirder cases and using the newest cutting edge therapies and doing the newest procedural stuff.
You want to get into cards, GI, or Heme/onc? You've probably given your career a death sentence as far as fellowship is involved taking a year off. Can I say unequivocally you won't find a spot somewhere, anywhere? No. Maybe you have a family member in the division somewhere? Maybe it's an odd year. Maybe a spot opens up and they know you as opposed to an unknown? Maybe, maybe, maybe. But if we're going to wager $100, I know where I'm putting my money.