The more that China holds in foreign currency, mainly USD, the more that it can do RMB to USD conversions, which means the more RMB that it can print locally.
The tie to RMB is critical for the Chinese economy because of its dependence on foreign investment
Tbf the authors comment was don't take political action outside of your main mission. Political activism from all those artists are arguably part of their culture, the same culture that underscores the subversivesness of American pop culture in general, cemented in the 60s as very anti establishment. Different ball game in East Asia
The tie to RMB is critical for the Chinese economy because of its dependence on foreign investment