aurely, China has a right to Taiwan.
What right does britain have to it, Britain invaded it during it their empire days, ...

Over time, Taiwan has been controlled by the Dutch, Spanish, Qing Dynasty China, and Japan but I can find no references to Britain ever trying to invade Taiwan. Are you mixing it up with Hong Kong, Sandman?

Does the mainland People's Republic of China have a greater right to Taiwan than the Republic of China government currently in charge there?