It think there is a sticking point. Taiwan was considered a part of China. Chinese Nationalists fled China to Taiwan, and claimed it for themselves. I I don't think it's naked aggression on the part of China to want its island back . They view Taiwan as a bastion of rebels, stealing their islands. I don't expect war, but humans have never been noted for their aversion to war. The diplomatic trick is to cede Taiwan to the Chinese, but not cede Taiwan to the Chinese.
As I've said all along, China views Taiwan precisely like the USA viewed South Carolina in 1860. There simply is no difference whatsoever.