Consider the last spat the two had where Chinese troops got a beating, never mind that 'socialist' tag. China divorced the Soviets and shook hands with US, remember? Sad indeed.
More like Puerto Rico will be the 51st star, Canada the 52nd, and Mexico the 53rd.
Years ago...I was on a bus from Thủ Đức and asked how to bus from Hồ Chí Minh City to <anywhere>. The whole bus erupted in laughter, including the driver, who was a state employee at that. Turned out that no one but party propagandists called Sài Gòn -- Hồ Chí Minh City. Ordinary people still called the city -- Sài Gòn. Today, conservative estimate has %50-something of the population borned after the war. More generous estimate has over %60. That mean the population no longer has any emotional ties to the Vietnam War. Việt Kiều like myself continues to undermine communism at the people's level with our ideas, remittances that help alleviate the poverty brought on by centralized planning for so many years, and criticisms of communism in general. Just like how the Soviet Union collapse in my lifetime, North Korea will disappear from China's grip, and there will be a Sài Gòn again. You boys will be around to see it all...