The ROC(Republic of China) aka Taiwan has always held a constitutional claim to mainland China, they were driven out after the communist revolution.
Your statement is inaccurate.
https://en.wikipedia.org/wiki/Taiwan,_China#Background_and_a...
Your statement is inaccurate.
https://en.wikipedia.org/wiki/Taiwan,_China#Background_and_a...
If you look at their history and policies it clearly does not feel the same way you do. There's a big wikipedia article that I linked there that says otherwise. Prove me wrong on this and I'll happily admit defeat.
Would you say the Republic of China does not claim dominion over what we in the west call mainland China? Yes or No? It's a very simple question that I doubt you will answer.
Is it really that hard to say yes or no?