You will be stuck on Earth for rest of your life, watching others prevail in space. They don't believe their freshly invented ships could defeat the Flame Nation, it's clearly not a battle in the same league, they probably won't be so foolish to engage. Therefore, at this time, they can only hurriedly advance domestic research and look for opportunities to cooperate with the Flame Nation.
No matter what these nations think, some want to send scientists to the Flame Nation's spaceships, for which the Flame Nation has no objection. Of course, there is discrimination in these matters, but recruitment for jobs in interstellar immigration and some other areas in space and on Mars has begun domestically in the Flame Nation. It's not just governments or nations starting the recruitment, many private companies are also getting involved.