Supporters of immigration argue that immigrants are, by and large, hard-working, motivated people who support the economy of the new country by introducing young, dynamic, and, in some cases, highly skilled people into the workforce. They strengthen the culture of the new country by making it more vibrant, robust, and diverse.
Opponents of immigration argue that immigrants are a drain on the new country's resources and that the immigrants bring crime and the threat of terrorism. Some argue that immigrants dilute the culture of the new country by not assimilating.