It seems literally infeasible for the United States to have state-issued PKI. It’s a meta-partisan issue: no side trusts the other to manage crypto or computer systems.
So for example instead of a public many-to-many digital publishing platform we are stuck with the whims of grown men who want to fist fight each other in the Colosseum and all because every X is convinced every Y is so despicable and corrupt that such a public system would be much worse than what we have now.