Trump fears that the nation is overpopulated, and this is one of the reasons that led him to build the border wall: “Donald Trump's wall aims to divide Americans – playing on fears and the racial anxieties he played and amplified to rally his base. Trump's wall is a political campaign promise that Trump must keep to keep his base happy." (Gallego). This article explains that the main purpose of the border wall is to keep the United States isolated from South America; especially for Mexicans because Mexico is a southern border of the United States and because of its poverty in Mexico. Many Mexicans want to flee their country legally or illegally, but most people choose to do so illegally. So this situation makes Trump afraid that his nation is overpopulated and he doesn't want those refugees to take over Americans' jobs. "As a presidential candidate, he began his campaign attacking Mexican immigrants as criminals and rapists and went on to attack a Mexican-American federal judge in a way that Speaker Paul Ryan described as "the textbook definition of a racist comment". .'”(Gallego).In the time he became president of the United States; he did not stop blaming the Mexicans, on the other hand, he continues to accuse them of being troublemakers in many ways imaginable to him: violators of the laws, guilty, insulting other people, etc. These reasons have made Mexicans even more angry because not everyone did this and it is not unfair that they were to blame. Say no to plagiarism on "Why Violent Video Games Should Not Be Banned"? Get an Original Essay The effect of the wall is large, because the estimated length of the wall is about 1,600 miles; during and after construction, many effects on nature will occur “The The border region between the United States and Mexico is a delicate ecosystem with regular migrations of animals and birds moving between the north and south of the American continent." (BBC). With this statement, between the border area of ​​America and Mexico there is a precise regular environment for many animal species. They always use this route to travel back and forth across the northern and southern parts of the continent, and not only that, some species also live in those areas. 'A number of species need to cross the border to mate with their genetically diverse cousins, including the North American jaguar and the endangered black bears, which would be threatened if they could not mate with Mexican bears.' “The wall should also take into account natural flood zones as well as large areas of sand, where the ground actually moves.” (BBC) To go into more detail is that many animal species are difficult to find, such as the jaguar North American and black bears, will certainly be at high risk of extinction. Because these animals must naturally cross the border area to meet the Mexican bears, so that they can hybridize with each other for their species to survive will be finished, it may say that it is impossible for them to overcome this great obstacle. Not only for animals, the border wall will affect the area that regularly flooded; also, it will affect large-scale land filled with sand it's the sand but it's the big area where landslides and earthquakes happen. Don't interfere with nature; otherwise, it will give us more damage, when you hear the word "wall" you might think it's something high and enclose a perimeter to protect things inside and.