The word, segregation, has very strong negative connotations associated with it, with some justification, because segregation as practiced within America, has typically been the enforced separation of certain elements of society from mainstream or the power brokers of such a society, and in furtherance of supporting that established mainstream to the detriment of those so segregated. So that, in short, segregation has meant injustice, unfairness, and discrimination, all of which are inimical to what America is supposed to stand for.
However, segregation on a voluntary basis and when done right has its place. So that, those of the Jewish faith, have historically been persecuted in virtually every country of this world for centuries, but by grouping together, and helping one another, they have been able to not only survive, but also to thrive, under circumstances that have often been very trying. So too, other religious groups, such as the Amish, in which their peculiar lifestyle, which is part and parcel of their belief system, simply could not exist unless they owned their own land, were grouped together, and separated from secular society. This is also true, for those that create places such as Korea-town, or Chinatown, and so on and so forth.
All of these are people have voluntarily segregated themselves and/or have created businesses that specifically are structured as being beneficial to their own beliefs, or to their own people, and while certainly they live within society at large, their highest priorities are actually taking care of their own within their own insular-like society.
The reality is, that when the government makes it a point to integrate people, that historically have not been integrated, with new laws set aside to do so, that the principle and purpose behind the laws, though, well meaning, may not translate to actually benefiting those so integrated. That is to say, the advantage of conducting business and having societal infrastructures that are specifically set forth for your own people, is that there is more trust and more cohesion within that group, because the people that are part of it, know each other. Further to the point, the dollars being spent, rather than going to large corporate entities that has no real footprint within the community, are spent and circulated within that community, which is also a material benefit for that community.
In America, there are all sorts of types of power, of which, one of the biggest is economic power, in which, minorities of all stripes, typically, though, not always, earn less for the most obvious reason, of them, being on the short end of the stick, historically. However, the numbers of any given minority, in aggregate is a very large number, a number large enough to have economic impact in its own right, so that, those that make it their point, to take their money earned, and to thereby, as much as possible, spend and then to circulate that money within their own community and with their own people, foremost, will make a positive material impact upon that community and their people, and will negatively impact those businesses that are use to seeing that money first spent with them, perhaps therefore, helping to initiate change within those conglomerate structures.
This so signifies, that segregation of purpose, can and does help strengthen communities, of which, in America, money talks, and how and where you spend your money, matters.