In practice, though, at least in Ireland there's been little obvious problem, though you can definitely see an increase: https://www.inex.ie/ixp/statistics/ixp
Also, California is mostly fairly urbanised and well-off. If Germany was the only place in Europe where people were being discouraged from leaving the home, this would be less of a concern. This is really targeting places, especially rural places, with poor infrastructure.
Also, there are very large parts of California that are rural.
That's about 5%, which is pretty low.
The US doesn't have many significant neutral exchanges, but here's one: https://www.seattleix.net/statistics/