It should be noted at the time Busch arrived in the USA in 1857, there were a LOT of anti-immigrant sentiment against the Gaelic Irish that showed up after the Irish Potato Famine, a group that showed up no speaking English (they spoke Irish Gaelic) and illiterate. In those days, riots against the Gaelic Irish immigrants were quite common, almost happening with the punctuality of a clock. Small wonder why it wasn't until the 1880's that the Gaelic Irish finally integrated in the US society.
German Protestants and even German Jews received less prejudice and discrimination than did German Catholics. The discrimination against the Irish Catholics was based on their religion as well. Racially and culturally speaking, the Irish are not much different from the Welsh or Highland Scots. Yet Scottish and Welsh immigrants, almost all Protestant, assimilated quickly into American society. Rampant anti-Catholicism, stemming from the religious wars in Britain in the 16th and 17th Centuries, left a residual of deep, religiously based hatred of Catholics. Even the Jews (until the rise of "scientific racism" in the late 19th Century) did not suffer from the degree of prejudice inflicted on Catholics, irrespective of their national origin. Only the Mormons suffered worse in American history.
I say, "odd" not because that's false, but it casts the NYCers in a bad light, and the flyovers well. Probably not what AB intended?