The FBI doesn't have the ability to prevent Apple from selling phones in the USA. There is no law I know of that would allow the FBI to do that. China does have the ability to prevent Apple from selling phones in China.
The FBI doesn't have the direct ability, but they do have the ear of multiple powerful people who can move policy & trade law around to apple's disadvantage. They did just lose multiple requested tariff exemptions in the trade war.
Are you suggesting a Federal law enforcement organization, that maintains files on certain private individuals, would collectively come together to approach politicians to do blacklist a company?
Because that would be illegal on about 97 levels. Right out of the gate it would be seen as potential blackmail.