Should The U.S continue to build a Border wall with mexico

Im writing my senior thesis but i waited to late to start it it has to be roughly 13 pages and its an argumentative essay concerning 

whether the U.S should continue to build a border wall with mexico or not. My stance is no. The thesis is broken down into intro (2)
narration and divison (3-5), proof (5-8), refutation (3-5), and conclusion (2). A citation of sources and footnotes are also required.
Feel free to use any sources as long as they are properly listed.