How did Hong Xiuquan attract followers for his rebellion against the Qing dynasty? He wanted to end extraterritoriality for British citizens.
He captured and occupied the city of Nanjing, making it his capital.
He had a plan for increasing the opium trade.
He had a vision of sweeping changes, such as property rights.

Hong Xiuquan first began preaching his own interpretation of Christianity among his closest circle and began to attract many followers, including a similar organisation in the neighbouring province of Guangxi. There, a large population of peasants, of whom many were Hakka, found hope and purpose in Hong’s vision.

Explanation:

Hong’s rebels expanded into neighbouring districts, and on Jan. 1, 1851, Hong’s 37th birthday, he proclaimed his new dynasty, the Taiping Tianguo (“Heavenly Kingdom of Great Peace”) and assumed the title of Tianwang, or “Heavenly King.” The Taipings pressed north through the fertile Yangtze River (Chang Jiang) valley.

Hong showed peasant rebellion could work in the modern age. This was one of the lessons the Communists took from the Taipings. The two rebellions in fact had much in common, but - one key difference - while Hong started lucky and got unlucky, Mao had it the other way round.

After leaving Roberts, Hong joined Feng and the God Worshippers and was immediately accepted as the new leader of the group. Conditions in the countryside were deplorable, and sentiment ran high against the Qing dynasty rulers. As a result, Hong and Feng began to plot the rebellion that finally began in July 1850.