You made unsupported claims about Somalis being “unassimilated.
First gen large scale immigrants rarely assimilate. Especially when the modern practice is to promote multiculturalism, which slows or halts assimilation.
It's not a hard rule, of course, but generally speaking, the initial adult immigrants don't assimilate very well. The children born of adult immigrants in the country of immigration overcorrect - they tend to reject their cultural heritage and adopt the new culture, sometimes in an almost caricatured fashion. The third generation (second gen born in country) tend to be well-assimilated, meaning that they actually acculturate to the new country but also retain some appreciation and respect for their heritage. That's where the melting occurs.
There's a significant amount of variation, of course. People immigrating from similar cultures assimilate very quickly; people from very different cultural backgrounds assimilate more slowly. Voluntary immigrants assimilate faster than refugees and asylum seekers. Immigrants who are geographically concentrated assimilate more slowly.
In the case of Somalis in Minnesota, you've got a large number of recent refugees who are geographically concentrated, and who come from a very different culture with significant differences in beliefs and values. In another 30 years they'll probably be assimilated, assuming we avoid balkanization.
IMO, without a definition that translates into observable assessment, your analysis isn’t very helpful to me.
It's funny how selective people are about sociology. If it supports whatever point they're trying to make, it magically becomes science, and often gets treated as if it's hard science. If it doesn't support whatever point they're trying to make, they just hand-wave it away.
The process of assimilation into a host culture isn't exactly a mysterious and new-fangles experiment with no observations behind it. But whatever. Apparently noting that a geographically concentrated group of refugee immigrants from an extremely different cultural background with a very different values and beliefs hasn't yet assimilated into US culture is a horrific insult that wounds you to your very core.
Instead of making excuses and insults, why not give a rational explanation for the basis of your conclusion other than “cuz I say so”. It ought to be easy since it is not a mysterious and new-fangled experiment.
A whole lot of work with demographics and marketing, with a lot of consideration for degree of assimilation and how that plays into how you design products and frame messaging over the course of many years...
You could just go do some basic research on cultural assimilation in immigrants over the course of generations. Or you can just decide to dismiss what I've said without bothering to give it any consideration or thought. Your choice.
You haven’t explained the basis for your claim that they have not assimilated or what you even mean by “assimilated “. Basic research on cultural assimilation shows that “assimilation” is a continuum. Until you are clear about what you mean, there is nothing you’ve said to dismiss.
The majority of the Somali residents came in as refugees in the mid 90s. That first wave are 1st gen immigrants, and as a generality, 1st gen do not culturally assimilate. They're geographically concentrated so they have a higher tendency to retain their parent country culture and values, and a lower tendency to integrate into the host culture - that's what happens when an immigrant community doesn't disperse.
You can see this in other parts of the country/world as well. Think about SF Chinatown, or Manhattan Koreatown - those concentrated communities retain a whole lot of their parent country cultures rather than assimilating into US culture, largely because there are a lot of people with that shared heritage in one place, which reduces the pressure to blend in with the host culture and fully integrate. When there's a high enough population in a small enough geography, that lack of assimilation persists through multiple generations. Chinatown in SF has been there for over a century, and even 4th and 5th gen residents aren't fully assimilated. They've retained a huge amount of their parent culture, ranging from language to architecture to cultural norms to beliefs. Visiting Chinatown in SF is almost like visiting a small foreign country embedded within a major US city.
Additionally, those Somali refugees came from an extremely different cultural background. They're pretty much entirely muslim, and islam has very different value and belief structures than either christianity or judaism, despite their shared history. As a religion, islam is pretty closed, and isn't welcoming to nonbelievers. Nonbelievers aren't invited into mosques as a generality, although exceptions are sometimes made. Services aren't conducted in English. The religious practices aren't modified to fit into the host culture in most cases, except to the extent required by law. Even then, those laws are often stretched or broken if they can get away with it. For example, in the US women are considered legally equal to men and have full rights as citizens on their own, freedom to move about as they desire, etc. But in many (not all) islamic communities, women are still under very strong cultural expectations to be subservient to their husbands, fathers, or other patriarchal figure, regardless of their individual desires. This is of course not true of all sects or all communities, nor is it limited to islam. We have other cults and conclaves of religions where the religious tenets override the wishes of their adherents.
Lastly, this is a community of refugees, not voluntary immigrants. Let's not quibble of the meaning of the word "voluntary" here. For this context, voluntary applies to people who independently chose to migrate to the US because they want to become American, and desire to adopt US values, norms, and culture. Refugees differ from this in that they didn't seek out the US because they want to be American, the were relocated to the US for their protection. There's a considerably difference between someone who flees a bad situation and is willing to go anywhere else to get away from it, and someone who really desires the destination on its own merits.
So we have four drivers at play, all of which slow down or impede cultural assimilation: Refugee status, cultural gap, geographic concentration of the parent culture, and recency of immigration. Each of those elements on its own is known to slow down or impede assimilation into the host culture. Combined, the resistance to assimilation becomes even larger.