The DPP wasn't even a very instrumental actor in the sunflower movement. It was largely student led and of those people that participated in it that went into politics, most went to different smaller parties. I lived in the country during the time that happened and to claim that foreign interference played any meaningful role is just absurd on its face. Maybe don't try patronizing entire populaces from afar as if they somehow weren't able to make their own decisions and come to their own conclusions.