Class Reductionism 

The idea in some leftist circles that all oppression based on gender, sex, race, etc. is just a byproduct of class struggle, and that once class disparity is solved, all those issues will vanish

"John thinking racism will stop existing after the revolution is a display of class reductionism"

Class Reductionism by nddragoon July 17, 2020

Mediumship Reductionism 

It is the idea inside skeptical and neoatheist circles about reduce mediumship to simple psychological tricks and mental problems, considering all mediums as charlatans and mentally ill people.

"The medium refuted the thesis of mediumship reductionism in the discussion with the neo-atheist during the mediumship session."

"Extraphysical theory refutes the mediumship reductionism theory... But skepticals and neoatheists do not want to recognize it."

Mediumship Reductionism by Full Monteirism January 29, 2021

Argumentative Reductionism 

Argumentative reductionism is an argumentative falacies that seeks to reduce all the arguments of an opponent using simply sentences, mainly logical falacies, nihilism and pessimism. Argument reductionism is usually nihilistic and pessimistic, always seeking to see the bad side or weaken points of the opponent was a way to refute him or attack him.

"Argumentative reductionism is a common thing in debates on internet, but mainly on political debates on internet."

"Argumentative Reductionism is really used by revisionists such as apolitical socialists and pessimistic socialists."

Argumentative Reductionism by Full Monteirism January 16, 2021

Class Reductionism 

Class reductionism is the epithet cast by cafe liberals on actual revolutionaries who understand that class struggle must be the foremost revolutionary struggle. Typically used by Twitterati and (insert identity politics faction here) Studies majors.

Pat reconsidered their accusations of class reductionism when the armed cis males freed them from their life of drudgery in some cubicle farm serving capital.

Class Reductionism by Urban Misanthropologist March 2, 2021

class reductionism 

The idea that class-based oppression should be the foremost concern among revolutionaries, with things like gender, race, sexual orientation, etc, taking a back seat until 'after the revolution.' For the most part the term is used as a pejorative by liberals against socialists and materialists, rather than being advocated by anyone.

"Bernie Sanders disappointment with Hillary Clinton's failure to secure the support of white working-class voters in the 2016 presidential election was a grotesque display of class reductionism, cultural insensitivity, racism, sexism and homophobia"

class reductionism by Santos D January 18, 2019

Social Sciences of Reductionism

A field that studies reductionism—the view that complex phenomena can be explained by simpler, more fundamental components—as a social and epistemic practice. It examines how reductionist approaches become dominant in certain sciences (e.g., molecular biology, particle physics), how reductionist frameworks are taught and rewarded, and how they shape research agendas. The social sciences of reductionism also study anti‑reductionist movements (holism, emergentism, systems biology) as social counter‑movements, and how the reductionism/holism debate is structured by institutional and cultural factors.

Example: “Social sciences of reductionism research showed that funding agencies in the 1990s systematically favored molecular approaches over organismal biology—not because molecular science was more correct, but because it fit reductionist narratives that were easier to sell to policymakers.”

Sociology of Reductionism

The sociological subfield focusing on the communities, institutions, and power dynamics that promote or resist reductionist approaches in science and philosophy. It examines how reductionist orthodoxy is maintained through graduate training, peer review, and funding priorities; how scientists who advocate for holistic or emergent explanations are marginalized; and how reductionist frameworks become embedded in instrumentation and experimental design. The sociology of reductionism also studies how reductionist ideologies circulate beyond science, shaping public understanding and policy.

Example: “The sociology of reductionism revealed that the rise of genomics in the 2000s was accompanied by a social devaluation of whole‑organism biology—researchers who studied living animals were called ‘naturalists’ (a soft insult), while molecular biologists were called ‘hard scientists.’”

Social Sciences of Reductionism by Abzugal Nammugal Enkigal April 16, 2026

Rejectionism 

1. The belief that you should reject anything proposed by another political party or group, no matter what it is or how it might benefit others.

2. A kneejerk reaction to anything that isn't "ideologically pure."

3. The attitude that you can honestly reject an idea even if you don't what it is -- or that you can reject a proposal without even reading it -- simply based on its origin.

Melvin is a perfect example of Rejectionism. He condemned the latest health care plan before it was even released -- in fact, before it was even written.

Rejectionism by Peter Kobs August 4, 2009