I live in the Netherlands and the cycling and pedestrian infrastructure is indeed better than anywhere else I've been. Apart from maybe Denmark, I doubt there's anywhere that comes close to the Netherlands, so comparing the US to it is pretty useless.
There's still plenty to improve, and plenty is improving, to be fair. In the last few years, I've seen quite a few impressive changes in Amsterdam's cycling infrastructure, which was already amazing. Streets getting redesigned now are taking cycling very seriously.
There's also Bicycle Dutch on a similar note to Not Just Bikes, but less polished.