They got their “sorry” in WWII and repaid our kindness and sacrifice with communism.
Japan invaded china. After Pearl, the US decided it would be helpful to both sides if they fought the common enemy, Japan. Before Pearl, the US did nothing to stop the Japanese attacks on China.
Perhaps you could elucidate the kindness the US supplied to China that was not self interest ?
Amen! Remember Claire L. Chennault and the The Flying Tigers.