The govt realizes that the investment needed to maintain leading edge is beyond most companies unless they have a large monopoly product.
Even TSMC required massive gov't support over a period of many years, and that govt now controls where TSMC is allowed to build fabs, so that is the relationship that is part of that deal.
x86 sure isn't going to keep IFS going, and the bridge to external customers doesn't quite get to the other side, so this is exactly the kind of case for govt intervention.
PG started the Ohio site knowing that Intel could not fil it or pay for it. It has been and will continue to be the site which exists only if the gov't is a major investor.
Once built, then it won't take much to get all the tech companies to sign on, and that should be enough to fill it. That is how the bridge gets completed.