It's been posted repeatedly by people who are spitting into the wind. Where is the cite that says the US can prevent a British Co. from selling out to another co. of any nationality at all? The US has no jurisdiction at all.
Every deal that includes a foreign investor has to pass CIFUS and then the Pres. Without their approval there is no deal on US soil.
US Treasury-Committee on Foreign Investments in the United States (CFIUS)