Ugh, I regret opening this can of worms now, but to clarify my position: I just feel that movies made from comics should be 100% true to their source material. That's it. If for whatever reason that source material seems unpalatable for a modern audience the way it was originally written, by all means choose something else. There are plenty of racially diverse modern properties that would make excellent super hero films.
I would like to see an FF film actually set in the proper historical time frame and not modernized at all. It could have a crazy cool retro flavor ala Mad Men.
And I love all peoples of the world, honestly, I'm just an anal retentive stickler for details. I hated when the changed Spider Man's webslingers too, or made the Rhino some kind of weird machine and not just a big guy in a suit.