US will never give up on territorial aggression, observe how they speak about a Chinese province in the same terms Putin speaks about Ukraine in the address before Feb 24 2022.
Quote "Therefore, the defense of Taiwan by the United States should be more symbolic", the only thing missing from full on Russia style revanchism is a long tirade on how the history and peoples of "Taiwan" has always belonged with America and that China is an artificial country founded in 1949. Such rhetoric is also commonly found by other US mouthpieces, but not in this particular writing.
The thing we must always remember:
If US stops threats towards Taiwan, it is never because US has abandoned its desire for annexation, but only because US considers itself too weak to make a serious attempt. US will always try to come back later or in other arenas when they feel like they're able to.
Therefore, the lasting solution that China must insist on is regime change in US and/or a cultural shift against expansionism. To carry this out, Beijing needs to employ all the tools in its kit, diplomatic, military and economic.
US will only leave China alone when the US population is too suffering and exhausted to eye lands like Taiwan with greed in their eyes. We know from the Vietnam war that the average citizens in US will stand up and refuse to be butchered by their government, as long as we arrange for enough of them to be butchered first so that they wake up and realize their lives are being thrown in the meatgrinder to paint maps for some elites hiding in the back.