I get into / come across exchanges like the following all the time.

Sally: Murder and cutting in line are similar in that they're both immoral.
John: Are you SERIOUSLY comparing CUTTING IN LINE with MURDER??

Sally has stated that murder and cutting in line share a certain quality (immorality), but John erroneously takes her to mean that they're equal not just in that they possess the quality, but also in the degree to which they possess the quality. That is, John accuses Sally of saying that cutting in line is just as bad as murder.

This seems especially common when somebody says that something is Nazi-ish, to which somebody invariably responds, "Are you SERIOUSLY saying that X is as bad as the HOLOCAUST (or some other Nazi atrocity)?"

Is there a name for this?

  • The fault here is more with Sally than with John. Murder and Nazis are emotionally charged so bringing them up when discussing minor infractions is at best inappropriate. At worst, it is emotional manipulation known as ad passiones fallacy, or "waving the bloody shirt". This is one of those cases where quantity transforms into quality, immoralities so disparate are not of the same "quality". The other side then also exaggerates by making a strawman argument, but Sally invited it and had it coming.
    – Conifold
    Commented Sep 23, 2020 at 5:08
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    – J D
    Commented Sep 23, 2020 at 5:32

1 Answer 1


Short Answer

Yes. The fallacy is known as false equivalence, and in English is often described with the idiom 'comparing apples and oranges'.

Long Answer

In your example, both examples, murder and cutting in line are ethical violations, however, to conflate the two as equally abhorrent morally would be a profound injustice. (Yes, intended.) Why is it possible that this flaw in reasoning happens?

Well, let's take apples and oranges. Both are fruits, it's true! However, there are serious discrepancies in their characteristics that are being ignored. One is grown in northern and wet places, the other in dry places. One can consume the skin of the apple, but not really the rind (zest excluded). They do both grow on trees, but one is a citrus fruit and one is not. So, as a whole, when one engages in argument from analogy when properties are insufficient to claim some form of identity, one is left with a false analogy. Of course, what makes the fallacy believable (and fallacies need to be persuasive by most accounts) is that there is SOME similarity in properties, just not enough to be engaged in an act of synonymy.

As Conifold points out, by using a false equivalence, one then leads into other fallacies such as an appeal to emotion or a strawman or even equivocation where the fallacy is founded on a presumption that there is a shared meaning where there is not. Your Nazi comment reflects Godwin's law which is a truism about how a generalization of the mildly bad ultimately becomes a false equivalence to Hitler and the Third Reich.

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