Taiwan is not a shining beacon of democracy either. Since the creation of the country in 1949, the total number of parties holding power is: two. For important issues like the geopolitical orientation and the business model of the country - the choice between KMT and DPP is like a choice between Pepsi and Coca-cola
Which is fairly common among democracies. How many parties has held power in the US since 1940?
Are you suggesting the USA is still a democracy rather than a republic or an oligarchy where only the political position of the rich matter?