There is an inertial mass of engineers still in the USA at the tech hubs, and top leadership at those companies still don't want them to be remote. They rather

There is an inertial mass of engineers still in the USA at the tech hubs, and top leadership at those companies still don't want them to be remote. They rather pay more and have them not remote than to have them remote. And even if they don't want them in the USA anymore with US compensation, it can take a long time to build up staff and still not have a huge core of them in the US.