Where are you, and how do you see them as they're unsuited or unfit for current conditions?
Wouldn't that then mean that IEE types would feel outcast or insufficient? As Carl Jung states, if Fi is truly more difficult to be understood than subjective thinking, shouldn't Fi-egos feel misunderstood all the time? Or are you stating that Fi-egos must rely on other Fi-egos / Deltas because of the nature of Fi, and because of that, they are inferior?
No offense to anyone, but I imagine quite an unstable world if Fi/Te dissolves and is replaced completely with Fe / Ti. In many of our recent IEE / Fi thread discussions, we've discussed how Fe handles the raw emotion of situations, whereas Fi tries to get to the field of influence causing of the emotion ( @anndelise explains it more eloquently than I). And in this case, I don't think I can agree that Fi is "on it's way out", simply because there is need for both.
You might have a case for how Fi-egos may be on the downward trend, but I don't believe, even if that were true, that that makes us obsolete.