September 24:  1967 riots and 2019 protests

Wikipedia's article "Hong Kong 1967 leftist riots" speaks about Macau as well as Hong Kong, both places' riots being connected with the Cultural Revolution in China. One sentence in the article is particularly striking:

"Despite the intervention of the Portuguese army, order was not restored to Macau; and after a general strike in January 1967, the Portuguese government agreed to meet many of the leftist demands, placing the colony under the de facto control of the PRC".

Is this where Hong Kong is heading? A break down of law and order, resulting in direct rule from Beijing? In 1967 the British administration was able to avoid such an outcome. Can the 2019 Hong Kong government do the same?

The 1967 Hong Kong riots lasted for 8 months and resulted in 51 deaths and 832 people injured. Learning about and from 1967 might be one way to help Hong Kong in 2019.