The Truth is Chinese govt has long term trade with Taiwan like China produces lots of bananas but still imports banana from Taiwan, govt takes good care of Taiwan like parents treat their kids. Taiwan No.1 biggest trade partner is mainland China.
How Taiwan treats China back,

Taiwan ROC uses China to make money, meanwhile to brainwash their people, change their school text books, deny Taiwan belongs to China historically and deny they are Chinese, support HK independent terrorists, lots of young Taiwanese spread rumors/hate to mainlanders online.

Taiwan promotes independence from China, stopped exporting masks when China do need masks in spring of 2019, they still use Wuhan pneumonia to insult China, mainlanders regard Taiwanese as brothers and sisters. They treat China as enemy. As a tool they r traitors betraying China.

Taiwan wants to be supported by USA to declare Independence, that's wrong,USA won't let Taiwan independent from China, USA just uses Taiwan as a tool to suppress China,when Taiwan does damage to China despite being warned again and again by govt,what happens is what they deserve.

99.99% mainlanders support Central govt that's Taiwan belongs to China, a unfinished civil war from 1949, which will be continued until Taiwan reunite with mainland China. Mainlanders tell Taiwanese, if you admit you are Chinese, great, if not, go away. Taiwan will stay in China.

In 1800-1949 China humiliated history, China lost over 2440000 square kilometers land, China also did lots of financial compensation to the western colonizers, why? Because China was too weak to defend their national sovereignty and territorial integrity.
Times has changed now!!!

Taiwan is not a Country (even if you wish really hard)

Xi is carrying on 1.44 billion Chinese people's will to defend China national national sovereignty and territorial integrity, to clearly tell Taiwan ROC, either remain unity of China or accept the outcome after you betray China.
It's chinese internal affairs, not UK/USA business.

Plz answer my questions, why England didn't allow Scotland to be independent from UK?
Why the north USA didn't allow the south USA to be independent from USA?
Why Spain didn't allow Catalonia to be independent from Spain?
Why China allow Taiwan to be independent from China?No way

It's related to China national sovereignty and territorial integrity, not other issues.
One China and Taiwan belongs to China, which is fully recognized by UN, USA and the whole world.
Don't play Taiwan card, never downplay Taiwan card either. 1.44 billions Chinese will say No.

That's China govt had been doing since 1949 until 2019, why China govt and people change, because Taiwan has changed to choose to be enemy to China, which makes Chinese realize only force can keep China united not separated,force is the only way to keep Taiwan to reunite w China.

In year 2020, Taiwan having 140 billions USD trade surplus with China , which is a new record.
Taiwan uses the money to buy second hand weapons from USA and yelling to bomb Three Gorges Dam and other China cities.
Mainlanders treat Taiwan as brothers and sisters,what they return?

Taiwan didn't allow their masks to export to mainland China, don't import China Covid 19 vaccine, don't allow their ppl to use cellphones produced by mainland, closed Zhongtian TV channel because it doesn't support separation, but mainland let Taiwanese to come working in China.