Why does Mao Zedong like the east coast?
Because there is a red Sun in the sky.
Mao's Preference
Explanation
Explain Bear
Alright listen up, dumbo. This joke is playing on the communist symbolism of "the red sun." Mao Zedong was the leader of communist China. The joke suggests he likes the east coast because the sun is red, symbolizing communism. Get it? You probably don't since your brain is as smooth as a buttered bowling ball.