Many English words are not "mistranslated," but rather these terms have been re-appropriated by Chinese ideology.

Labor Day: originally "International-Workers'-Day," emphasizing the working class's struggle for labor rights and systemic improvements; the Chinese "Labor Day" downplays the labor class and rights struggle attributes, turning it into an abstract praise of "labor" itself and a holiday expression (class demands → universal value narrative).
Individualism: corresponding to "Individualism," originally emphasizing independence and priority of individual rights; in Chinese, it often refers to selfishness and self-interest (from value affirmation → moral negation).
Utilitarianism: corresponding to "Utilitarianism," originally meaning "the greatest happiness for the greatest number"; in Chinese, it often turns into unscrupulous pursuit of profit (public interest → private interest supremacy).
Liberalism: corresponding to "Liberalism," originally emphasizing rights protection and institutional constraints; in Chinese contexts, it is often interpreted as "no constraints, do whatever you want" (systematized freedom → disorderly laissez-faire).
Democracy: originally meaning popular sovereignty and participation in governance; in some contexts, it is simplified to "formal voting" or even "emotional expression" (system arrangement → superficial behavior).
Capital: derived from "capital" in Capitalism, originally one of the factors of production; in Chinese, it is often personified as a profit-seeking and negative force (neutral concept → moral object).
Middle Class: corresponding to "Middle Class," originally a stable social group; in Chinese contexts, it sometimes becomes a "consumption ability label" or even an "anxious group" (structural concept → emotional label).
Science: corresponding to "science," originally a method of continuous falsification and correction; in reality, it is often regarded as an "absolutely correct, unquestionable authority" (doubtable system → unquestionable conclusion).
Rationality: originally referring to thinking based on logic and evidence; in everyday language, it often turns into "indifference, lack of emotional consideration" (thinking style → personality trait).
Objectivity: originally meant minimizing personal bias; in Chinese, it is sometimes used as a rhetorical tool meaning "what I say is correct" (methodology → stance declaration).
Freedom: corresponding to "freedom/liberty," originally coexisting with rights and boundaries; in reality, it is often understood as "no constraints at all" (with boundaries → boundaryless).
Equality: originally meaning equal rights and opportunities; in some contexts, it is misunderstood as "results must be the same" (opportunity equality → outcome equalization).
Criticism: originally meant analysis and examination ("critical thinking"); in Chinese, it often becomes mere negation or attack (analytical tool → emotional expression).