Speaking in support of the gp's point: Dearborn's community of Middle Easterners (more than just Muslims, also heavily Chaldean) speaks an awful lot of Arabic a

Speaking in support of the gp's point: Dearborn's community of Middle Easterners (more than just Muslims, also heavily Chaldean) speaks an awful lot of Arabic and not so much English. Similarly, the Chinese community in Ann Arbor is very insular and sticks heavily to Chinese over English. This is not a normative statement to say that this is bad, but in this region there are immigrant groups that aren't assimilating as quickly or thoroughly as groups in other areas. Some of that is enforced temporary-ness in the case of the Chinese community in Ann Arbor, but some of it is the sheer size of the community in Dearborn -- the largest Muslim population in the Western world, not even mentioning the huge Chaldean group. (Might no longer be true after the recent refugee movement into Europe, but was true very recently.)