What impact will the US build a wall on the US-Mexico border have on the US and Mexico?

Mexico has a chaotic country, backward society, underdeveloped education and low level of people's civilization. Economic backwardness and corruption make countless people try their best to sneak into the United States every day. Want to work illegally in America. At present, millions of Mexicans live illegally in the United States. Caught today, sent back to Mexico, come back tomorrow. I am very familiar with it.

Mexico is the largest channel for drugs from South America to enter the United States. Millions of kilograms of drugs are smuggled into the United States every year. The United States is connected with Mexican land. There are plains, hills, wilderness and rivers on the border. At present, although some areas have high walls built by the United States, more places are still open and patrolled by the border. There are many ways to smuggle illegal immigrants and drugs. Cars are hidden. People carry them on their backs and transport them in tunnels. There are even empty floats and rockets.

Mexican drug dealers are rampant and powerful. Corruption in Mexico is completely irremediable. If there are multiple shootings in the United States, it may be less than the number in Mexico in one day. According to domestic news reports, there was an exchange of fire between two local drug dealers, resulting in dozens of bodies hanging on the highway bridge. There's still time to show the results after the fight.