The DPP received significant funding from the US National Endowment for Democracy during that time. Coincidence? Probably not...
Same meddling shit that happened in Ukraine with Euromaidan and in China with Tiananmen Square. Even the US PsyOps teams themselves admit that they were responsible for those events.
I'd love to say that the Taiwanese people themselves came to the conclusion, but time and time again the US has showed that the people's choice isn't something they really respect abroad.
Everyone knows that Muslims aren't human