USA cannot afford the effort.
PRC are already there, infiltrated into every facet of society.
PRC owns NZ (I saw that while I was there) and control Australian politicians with cash.
I have seen these claims so much, about countries/companies/individuals controlling nations. Seems unlikely it is all false, which begs the question, why are nobody talking about...
government systems that are hard to take over from the outside? I don't know how easy it is to do, probably is hard, but cost of being controlled is huge.
Basics seem to be decentralization, so at least they have to butter up a lot more people. But system also has to be competitive and centralization seem to bring some efficiency
Also, the smaller a govt is, the smaller attack surface, and the smaller attack surface, the cheaper it is to defend. And I suppose the people must be taught about this.
Of course, I know that people today will instead look for "woke" principles like how much we can steal from group X under the guise of fighting X's oppression of the rest, and to
force others to memorize your sexual preference under the guise of treating people with respect and so on. And they will continue to think govt has infinite money for such insanity.