Why are China Estonia and Saudi Arabia nondemocratic countries though they declare themselves as democratic Define.?

China, Estonia, and Saudi Arabia may declare themselves as democratic, but their political systems exhibit significant nondemocratic characteristics. In China, the Communist Party maintains strict control over political life, limiting pluralism and dissent. Estonia, while a functioning democracy, has faced criticisms regarding issues like media freedom and minority rights, which can undermine democratic principles. Saudi Arabia is an absolute monarchy where political parties are banned, and the king holds significant power, limiting political participation and civil liberties.