Division is weakness

Overview

"Division is weakness" is essentially an argument that unity on some issue is more important than making the best choice.

Legitimate Use

A reasonable use of this argument is in a situation where people are in disagreement over some detail, or some irrelevant issue, when there is a much more pressing issue on which action is being prevented by the disagreement.

In this situation, though, a better argument would be to point out the more important issue and push for quick resolution or shelving of any minor or irrelevant issues so the more urgent issue can be dealt with. This is more likely to be persuasive, and addresses the actual meta-problem of correct prioritization rather than trying to force unity without explanation.

An exceptional legitimate use might occur in circumstances where it is more important to take some action than it is to be certain of taking the best possible action. It seems unlikely that this sort of thing would reach the point of being a public issue, however, before a decision had to be made, and hence such a decision would end up being made by someone in authority rather than in the sphere of public opinion.

When trying to decide in retrospect whether a leader made a correct call in choosing imperfect action over careful deliberation, the question should resolve around whether the imperfect action chosen was reasonable under the circumstances – rather than any claimed need for unity.

Illegitimate Uses

Most or all non-legitimate uses of this argument occur when the "more pressing issue" is actually the same issue over which there is disagreement. In this case, the argument is essentially saying "it is more important to do something than to do the right thing" – which is almost never the case in matters of public discussion. (See #Legitimate Use for further discussion of exceptions.)

Under these circumstances, this argument is essentially an attempt to justify suppression of dissent.

It is also the logic behind the Party slogan "Ignorance is strength" from the novel 1984: if a population is ignorant of the relevant facts, they have to trust the decisions made by their leaders – which makes it much easier for a leader to rally the public to whatever cause the leader chooses, thus greatly increasing that leader's effective (military) strength over those of less restrictive governments.