About American immigrants. How to return to China for political asylum?

Studying in America is not suitable for your brother.

Political asylum immigrants conflict with your brother's studies in China. If your brother plans to go to America, he should go within the validity period of his visa. After you get a green card, you can't come back casually, otherwise it will be easily revoked (political asylum means that you will be persecuted or even in danger in China-if you return to the United States safely, the US Immigration Bureau will seriously doubt the authenticity of your political asylum. )。 If your brother gives up this visa, he will finish his studies in China first, and the chances of success when applying for a visa again will be very low. (For reasons, see the explanation of political asylum.)

Since you plan to go to America, consider going to school in America.

The visa for studying in the United States is for those who have a green card in the United States, and they only apply if they need to leave the United States for more than 1 year. (In principle, green card holders should stay in the United States for six months every year. )