Since the change in u. s. immigration policy during the 1960s to encourage immigration of relatives of u. s. residents and people with desirable skills, where have the majority of immigrants originated from?

The majority of immigrants have originated from Mexico because it is so close to the United States. They come over for a better life and job opportunities. People have said that they are taking jobs from Americans but I believe that they are doing most jobs that Americans don't want and arehappy to do them to provide a better life for their family

False but idk if im right