The bully really stems of that some do not recognise "one China", which is not the point of view in Beijing. You cannot say it's bully if Taiwan is part of China.
Even if you think Taiwan is part of China, it’s perfectly possible to claim that one set of Chinese people (the PRC government) is bullying another set of Chinese people (the Chinese people of Taiwan).
George Orwell already demonstrated this long time before: Who controls the present controls the past. Most Taiwanese have been realizing that the so-called 1992 consensus is a total nonsense.
If you have doubt, search "1992 Consensus".