IMO, this is probably the single most important misunderstanding that underpins many humanistic ideologies.
These things are not divisive they are the among the most unifying things in human history. They can only be seen as divisive if we start with the assumption that people are naturally united
until something divides us.
Humans evolved in small groups, and only were able to form larger and more complex societies due to things like religions and ethnic/national identities. The idea we can keep on ever expanding our in group until it contains all of humanity is palpable nonsense.
Simply being the same species doesn't engender a sense of loyalty and brotherhood, and our sense of self is as much defined by who we are not as by who we are.
There are genetic and structural limits to how united our species can be, and those who are happy to see a decline in the traditional unifying forces thinking they will be replaced by global harmony will likely be very disappointed.
You need myths to bind people into a community.
Studies have shown immigration into a community reduces the level of social trust and thus support for things like welfare that are based on community solidarity.
To improve social cohesion, these outsiders need a way to become 'us'. For example, an inclusive ideology like the American Dream and similar things allows diverse people to become a community. Diverse people can all become American patriots and find a high level of acceptance.
In a nation where community membership is defined by ethnicity of genealogy, outsiders cannot easily become good community members.
A transactional approach that doesn't rely on myth would need to be something like 'immigrants are good for the economy, here are some stats...'. It will not prove effective against competing myths as, in general, humans are less persuaded by facts than they are by stories (not to mention 'facts' are often disputed).
No, it's just a series of narratives that underpin a worldview and are not the neutral presentation of objective fact. What matters are the principles
it communicates, not whether or not it is broadly true or false
These are the stories that explain why we hold the values we do, why things are the way they are and what out vision for the future is.
People are driven by emotion
All societies contain transactional aspects, but no society is purely transactional. They are all dependent on some form of unifying narrative that people buy into.
On a divisive issue, I could have all the facts in the world and neutrally present people with reams of data, but without a narrative of my own, I would lose to any well crafted myth.
They are they why more than the what.
A country is not a myth, but its origin story, national character, heroes, triumphs and disasters are.
What obfuscates is artificially separating belief systems and their underlying myths into "religious" and "not religious", often with the implicit premise that the religious are 'irrational', 'primitive' or 'bad' and the secular are 'rational', 'progressive' and 'good'. This is itself a myth, basically a secular theodicy and salvation narrative: good humans do evil because religions have corrupted them and made them irrational, if we get rid of these we can all be rational and live in harmony.
This is a statement of opinion.
Myths tend to explain situations with regard to normative desires, justify values, etc.
The 2nd one is just an expression of a standard secular humanist principle.
Also, IMO, resistance to change is good as otherwise you rush into faddish, silver bullet solutions that don't deliver what they promise. The ideal society had resistance to change, just not a refusal to change.
Most new ideas are ****, only a handful will stand the test of time The default heuristic should be anything that has remained in place for a long time most likely serves a purpose that has enabled it to survive. While things do become obsolete, we should be cautious regarding such things as we may end up making things worse.
The idea is expressed by
Chesterton's fence:
In the matter of reforming things, as distinct from deforming them, there is one plain and simple principle; a principle which will probably be called a paradox. There exists in such a case a certain institution or law; let us say, for the sake of simplicity, a fence or gate erected across a road. The more modern type of reformer goes gaily up to it and says, "I don't see the use of this; let us clear it away." To which the more intelligent type of reformer will do well to answer: "If you don't see the use of it, I certainly won't let you clear it away. Go away and think. Then, when you can come back and tell me that you do see the use of it, I may allow you to destroy it.
This changes the point. It is not stating a value.
Your 'must' is also prescriptive, to justify this you need to create a mythos as to why people should want to do this. You can state a principle without myth, you can't justify why it is normatively desirable without (at least in most cases).
Also the imperative is on the individual or group to survive, it doesn't operate at the level of the species. "Humanity" is also a mythical concept born largely of monotheism. There is no humanity, but human as individuals and groups with competing and often incompatible needs and wants.
If you want to justify our responsibilities to unrelated people and their progeny, especially when they go against our self-interest, then you utilise myth/narrative.
I'd say the above is a myth.
It was articulated as
the law of three stages by Auguste Comte, who though we could create a science of everything.
The problem is humans aren't rational and are impacted far more by emotions and intuitions than they are facts, reason and evidence.