Article 9. The right to assemble or associate peaceably for any lawful purpose cannot be restricted; but only citizens of the Republic may do so to take part in the political affairs of the country. No armed deliberative meeting is authorized.

Article 33. Foreigners are those who do not possess the qualifications set forth in Article 30. They are entitled to the guarantees granted by Chapter I, Title I, of the present Constitution; but the Federal Executive shall have the exclusive power to compel any foreigner whose remaining he may deem inexpedient to abandon the national territory immediately and without the necessity of previous legal action.

Foreigners may not in any way participate in the political affairs of the country.

The two items above come from the current constitution ... of MEXICO.
Do I need to re-post the vids showing how many "derechos humanos" they proffer to people who cross into their country illegally? ~t*t

http://www.ilstu.edu/class/hist263/docs/1917const.html

http://www.iwp.edu/news_publications/detail/mexicos-glass-house