Final answer:
The point of the excerpt is to explore the question of what unifies the diverse groups within the United States.
Step-by-step explanation:
The subject of this question is English.
The central idea in the first paragraph is the diverse groups of people within the nation, including Arabs, Jews, blacks, whites, gays, straights, Poles, Chinese, Puerto Ricans, Slovenians, etc. The second paragraph discusses how these groups, despite their differences and occasional hostilities, are still interconnected and unified in some way.
For example, the excerpt mentions how Arab and Jewish cabbies chauffeur passengers of different backgrounds, yet there is still talk of hatred between them. It also points out that other countries with similar divisions have divided into new nations, but the United States remains impossibly interwoven even in times of hostility.
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