It seems absolutely right that countries should promote their industries, promote their companies and encourage people to buy "local". We have Buy American, buy British and probably lots of others. I know there was talk of buy European. However I haven't heard of China promoting a "buy Chinese". I know if I have a choice I favour British first, European second.
When countries introduce their buy local campaigns – in America the Buy American Act was passed by Congress in 1933 - no one assumes that this is a protectionist measure. Quite the opposite we all see this as something patriotic. So there can be no complaints should China introduce such a measure: Buy Chinese technology, buy Chinese cars, buy Chinese clothes etc.
It would be interesting to see an analysis of where countries could be self-sufficient.