I think the subject is covered pretty well on Wikipedia which provides some insight about human rights implementation in China:
Human rights in China is a highly contested topic, especially for the
fundamental human rights periodically reviewed by the United Nations
Human Rights Committee, on which the government of the People's
Republic of China and various foreign governments and human rights
organizations have often disagreed.
According to Chinese Constitution, the most if not all human rights as are ensured (Chapter II):
- right to vote (18+)
- freedom of speech, of the press, of assembly, of association, of procession and of demonstration
- freedom of religious belief
- freedom of person inviolability
- freedom and privacy
- right to rest
- right to material assistance
- right to receive education
- women enjoy equal rights with men
- etc.
So, officially (by law) all these rights are recognized.
Also, it is important to notice that the Chinese Government officially recognizes that human rights cannot be applied in China in the same way as in Western countries due to "political and economical" differences:
The PRC government repeats the often ambiguously and confusingly
stated opinion that human rights should encompass what its officials
have labelled as 'economic standards of living and measures of health
and economic prosperity'. It insists that as economic, cultural and
political situations differ substantially between countries, a
international definition of human rights literally cannot apply to
China.
Rights that seem to have some support
Members of the Communist Party are officially required to be
atheists,[68] but this rule is not regularly enforced and many party
members privately engage in religious activities.
Legally, all citizens of the People's Republic of China who have
reached the age of 18 have the right to vote and stand for election,
regardless of ethnicity, race, sex, occupation, family background,
religious belief, education, property status, or length of residence,
except for persons deprived of political rights according to laws
imposed by CPC regulations.
In 2001, homosexuality was removed from the official list of mental
illnesses in China.
"they refuse to implement a democracy"
China is a democracy, although its form, definition and implementation was debatable. According to its Constitution China has a "democratic dictatorship":
People's democratic dictatorship is a phrase incorporated into the Constitution of the People's Republic of China by Mao Zedong, leader the Communist Party of China (CPC). The concept, and form of government, is similar to that of people's democracy, which was implemented in Eastern Europe under the guidance of the Soviet Union.