In "Breaking Down Barriers," which details best support the central idea that the people of Texas felt that Vietnamese American refugees were taking their jobs?

It was the 1980s, and back then tensions were so high in the small south Texas coastal
community that white shrimpers and their Vietnamese competitors sometimes carried
rifles into the bay and took potshots at one another from their boats.
Thousands of Vietnamese refugees moved to the gulf coast of Texas in the 1970s, many
drawn by the opportunity to make a living doing what they once did in Vietnam:
shrimping.
Thousands of Vietnamese shrimpers had already begun new lives in the bays of south
Texas. When they began pulling around-the-clock shifts, the locals felt their livelihoods
were threatened
Some in the area still cling to racist attitudes. Nguyen says he receives an occasional
plece of hate mail. Interracial dating can lead to fistfights in waterfront bars. And some
residents actively opposed erecting the celebratory billboard.