“Ownership of America” ?
No, its ownership of properties in America. America has huge amounts of property, the gross value of everything potentially for sale in the US is incredible, 50X or better total global GDP. Foreign investment at any scale is a teeny slice of the net worth of “America”.
This is not some banana republic where the sole significant industry can be purchased by a single foreign owner.
What makes America such a good deal ? Do you have to ask ? This is the worlds most dynamic economy AND the ultimate destination of “capital flight” - where you want to hide your wealth ultimately, because if the US goes down, the state of everywhere else would certainly be worse. America is the backstop investment.
Go have a cold Budweiser.