How many times does this report make reference to the idea that those leaving the United States are "returning" to their original "homeland" of Mexico?

The correct answer to this open question is the following.

Unfortunately, you did not attach the report. So we don't know what is the content of that report.

However, trying to help you we can comment on the following.

Most of the Mexican and Central American immigrants that are caught by the border patrol are returned to their former countries. In the case of Mexicans, they are sent to México.

According to some reports made by the Office of US Customs, the US Administration that sent more illegal Mexicans in the US to their native country was teh Barack Obama's administration.

These immigrants have their families in many states of México, as is the case of the states of Michoacan, Puebla, Guerrero, Oaxaca, and Zacatecas.

executive, (president and about 5,000,000 workers) legislative (senate and house of representatives) and judicial (supreme court and lower courts)

explanation:

north east because it has more forest