I disagree with the Tariff for Tariff strategy. Some retaliation is fine, but it needs to be carefully targeted for maximum harm to the other country and minimum harm to yourself. Many times you won't find such amount of tariffs in commensurate amount, and that's perfectly fine.
There are really only two effective strategies. One is gunboat diplomacy. You know it goes with this one, foster an opposition, support said opposition with money, arms, and your own military if necessary. Is China ready and willing to do this all over the world? To build and maintain a western style hegemony?
The second strategy is to become a comprehensive industrial power, let countries protect what they want to protect, and sell to them what they can't make. For example, if Indonesia wants to protect their textile industry, set up textile factories in Indonesia, import Chinese cotton and designs, sell them to the world through Chinese apps, repatriate a share of the profit back to maintain an edge. Make other countries a part of the Chinese supply chain, rather than only exporting finished goods. If a country wants to wrestle the entire supply chain away, e.g. the US with the EV supply chain, well, let them try. If China is comprehensively superior and the American supply chain is less efficient every step of the way from the nuts and bolts to the final assembly, then they'll only end up creating dramatically uncompetitive products and be a siphon of wealth rather than a creator of it.
You can fight like a rock or like water and neither is easy. However, China is IMO better built to fight like water.
