It shuts down production and it makes people feel like they are going against the union when they cross the picket line. Like, Earnings will stop, union members who strike for long periods of time will loose benefits morale is more likely to deteriorate, communication from company's will usually stop.
Manifest Destiny was a distinctly racist concept in the first place. The idea was that white man was destined to conquer the west and this meant subduing anyone else who happened to live there. White man alone was entitled to this "destiny". It used the ideas of Jacksonian democracy of a "white man's democracy" to develop these beliefs.
Ouachita mountains would be correct!