Naturalization
by naturalization or birth
Nativist
Nativist
False
False
citizens
Assimilation is normally the term that speaks to the process by which immigrants to another nation become part of the host nation's culture and values. This does not mean that they must forget their heritage. With that said, new immigrants will receive a warmer welcome if they seek to find common ground with their new host nation.
The US Constitution provides for a process of submitting a direct vote of the citizens for a approval or rejection. This process is called a referendum.
The term for people who move permanently to another country is "immigrants."
The term "amnesty" in US politics, and presumably when 2016 Presidential Candidate Ted Cruz uses it, typically refers to the idea of giving the Illegal Immigrants in the United States some sort of pardon for the crime of illegal border crossing. It can be as minimal as ceasing the deportation proceedings of Illegal Immigrants, but is usually a reference to a "Path to Citizenship", where the Illegal Immigrants will be able to apply to become US citizens under certain conditions set out by law.
Nativism
The Latin term for Roman citizens or citizens of Rome is "quirites".