Influence the US to do what? Also why would there need be large scale war?
<span>They feared new immigrants would take away their jobs, or drive down the wages by accepting lower pay. They thought they were not assimilating or fitting in with American society. Blamed immigrants for increasing crime, unemployment, called for legal restrictions to stop people from coming to the US</span>
The only option that is not generally a reason why historians study societal change would be "<span>d. to estimate how long it would take to build a road system," since this requires a separate type of research. </span>