Intel has a large number of fabs and I think capacity is reallocated over time; for example, a 22nm fab might be converted to 10nm to adapt to changing demand. They can eventually get down to just one 22nm fab which won't require as much demand to fill.
To be fair, there are limits on how far and how fast one can upgrade a fab and upgrades are planned out many years in advance. Equipment for the smaller nodes tends to be larger and more complex and involving more steps; this requires more space. Additionally, ASML only makes around a dozen of the EUV machines each year and they are booked years in advance.
