Immigrants are homeless.

Judging from the pictures in the news, it has no practical effect. It looks like an ordinary wall. You can cross it by climbing ladders and digging tunnels. Moreover, the terrain in those places is complex. Hundreds of millions of people legally enter and leave the country every year, and millions of illegal immigrants, estimated to be hundreds of thousands every year. I really can't figure out why the United States can solve this problem by building a high wall.

If it really works. Build him seven or eight meters high, electrify him, install monitoring, and equip him with personnel. Only in this way will there be tangible results and immediate results. But that's the problem. The wall is high and the amount of work is large. Will America do this for this group of immigrants? Can the United States afford such a large sum of money?

Moreover, it is unrealistic to block immigrants only by a wall, and it is necessary to rely on laws, regulations, policies or force to forcibly restrain them. Your plan is very good. I have a wall ladder, which can be turned over or not. At first, I thought it was the size of China and the Great Wall, but then again, the meanings of the two are different. ?

The main significance of the Great Wall in China is from the initial resistance to nomadic tribes to the final division of economic system, cultural structure and ancient ethnic structure. The project is huge, with a history of more than 2,000 years and a total length of more than 20,000 kilometers. The two are not at the same level.

Moreover, if the United States does this, it may be counterproductive. Illegal immigrants themselves do not meet the standards of American immigrants. American immigrants are composed of investment immigrants, skilled immigrants and refugees. If this is really done, it will undoubtedly stimulate illegal immigrants and bring about some social problems, such as the increase of shootings and infectious diseases, which will lead to a sharp rise in crime rate and an increase in social stability expenditure.