I am a free person and I do know it! The wrong decisions we make during our life could put us in a cage. Nationality can be selected by a human later in his life, same as the tools of the trade.
If UEFI firmware in the laptop bought from common companies (Dell, HP etc.) support just FAT* then that is the cage. Buying from the wrong manufacture (lazy enough to not support other filesystem in their firmware). Case close.
About myths which trap you:
If I would be an "alien"/non-US person (aka from Russia, China), do you think that I will TRUST an US-made CPU/GPU/APU (Intel, AMD) and an UEFI (US-Microsoft approved) to run my computers, [with US-software], for my key parts of my country, like hospitals, government documents, military /encrypted communications, research laboratories?