The PRC is the confederate equivalent, as they weren't the original legal government unlike Taiwan, which legally is the heir of the ROC.

The left wing of the KMT split from Chiang's KMT in 1948 to form the Revolutionary Committee of the KMT. It was headed by a senior KMT General and Song Ching Ling the widow of Sun Yat Sen. Madam Song would later serve as a Vice President of the People's Republic of China and the Revolutionary Committee of the KMT holds seats in the National People's Congress to this day.

If you even look at the history of the KMT, you'd see that it's incredibly prone to factionalism, including a period during the First United Front where the CPC agreed to join the KMT as a wing to fight the Warlords but left after the KMT stabbed it in the back during the Shanghai Purges.

Legally, the PRC is recognized by the UN as the sole representative of China under General Assembly Resolution 2758 and the overwhelming majority of the world's nation's recognize that there is only one China and that China is the PRC.

Cope and seethe.

The PRC is the confederate equivalent, as they weren’t the original legal government unlike Taiwan, which legally is the heir of the ROC.

Going by paper legality argument, ROC is also illegal because it wrested power from Qing. Which conquered China from Ming, which toppled Yuan, and going fast forward to Han, Qing, Zhao and Shang, neither of them also risen peacefully.

one of these states is an authoritarian piece of shit, and it's definitely not Taiwan.

Tell that to the indigenous people of Taiwan. I bet they'd love to hear about how they genocide was "non-authoritarian".