>>105877807Pixar prospered while Disney faltered in the 90s.
Other studios took note and came to the conclusion that 3D animation was the future, so everyone started making 3D movies instead of 2D (which, honestly, only Disney had really made a reliable cash cow out of in the first place).
Now, 20 years later, the industry is full of people trained for 3D, but the 2D animators are mostly relegated to TV, where animation is limited due to budgetary and time constraints. Much of the old guard of 2D animators have retired or become teachers, and with each passing year there are fewer and fewer of high-skilled 2D animators for studios to pull from, while there are plenty of 3D animators for studios to hire.
MEANWHILE IN JAPAN:
2D animation remained dominant, due to studios like Ghibli and others putting out reliable, high-quality product, while frankly, most Japanese 3D animation either looks stiff and limited, or flashy and hollow, so in Japan, 2D has remained dominant (strangely, the only good 3D animation I see out of Japan always seems to be in video games).
They have their own problems, though, with an aging workforce, underpaid animators, (many of whom I'm sure are looking for greener pastures), and rising labor costs.