Ummm....
Many places in China had been colonized...Like Taiwan(At first colonized by Holland,then Japan...ROC gov escape from mainland and resist reunioning and plan to fight back,but they fail,of course),Macau,Hong kong,Shanghai,NE 3 provinces,and many big cities in mainland..
Those are issues left over by history.
Taiwan situation now:not independent,not unified.
Indeed...I don't why some of them don't regard themselves as Chinese,in Taiwan Han accounds for 98%,more than mainland.
If you know Chinese language and read books by Taiwan old people,you will find that they call themselves Chinese,However many things have changed since 李登辉(educated by Japanese...) came to power...
Revise textbook,reduce Chinese influence and betray KMT(Republic of China gov)...He changed many Taiwanese thinkings....(So,How can we like Japan,it brings so much pain to China)
Now,KMT gives in and gives up the call"Republic of China".
New Party and 中华统一促进党(China reunion promoting Party) promote reunion.
Democratic Progressive Party set up by 李登辉 rejects reunion.
Oh,wait.
Republic of China+The People's Republic of China=China,of course he can call himself Chinese/from China.
But some people in Taiwan think Chinese isn't a good word to them.(China's international reputation isn't good,someone think it's shameful to be called Chinese in Taiwan....)
There are also some people regarding themselves as Chinese..
Here in mainland,many websites are providing platforms for two sides to communicate.Don't believe everything that west media say..Come to Tianya and you can ask Taiwanese about their thinkings.
Have a look at Taishang
,He uses China as "Country",and in Tianya,there are some Taiwanese approve "One China".
PDF has sth. wrong..In fact,the so-called taiwan flag is Republic of China flag...
**Do you know Fang Wenshan?
I think so