Why did Trump insist on building the US-Mexico border wall?

Due to illegal immigration and rampant drugs on the US-Mexico border, Trump will build the US-Mexico border wall. This is also an effort to maintain the security of the US border. Because the immigration policy of the United States in the past led to a large number of illegal immigrants. However, the living habits and religious beliefs of these illegal immigrants are different from those of American citizens. Therefore, it is easy to cause great friction, and even serious conflicts may break out.

The main reason is that there are many illegal immigrants in the United States, which has caused the United States to bear a very large economic burden, because these illegal immigrants often do not have excellent academic qualifications and excellent skills. As a result, after they came to the United States, they didn't have any jobs, but they would become the aid objects of the American government. So this actually increases the economic burden of the US government. More importantly, their cultural customs and religious backgrounds are different from those of ordinary Americans, so it is very easy to cause conflicts and cultural incomprehension. This will also lead to a series of violent conflicts.

More importantly, the US-Mexico border is a region where drugs are rampant. Therefore, in order to stop the spread of drugs, US President Trump specially built the US-Mexico border wall, and it is also for the United States to put an end to drugs, which endanger the safety of ordinary people. From this perspective, Trump is also thinking about the American people, because the drug market in the United States is very rampant now, which can be said to be the largest drug trading market in the world. In the long run, the American people will be deeply troubled by drugs. So Trump intends to ban drugs from the source.

Of course, this also has a lot to do with ordinary Americans, because they think that illegal immigrants have robbed them of their own job opportunities. They lost their original jobs, and the American people are very disgusted with these illegal immigrants. These American citizens are very supportive of Trump's decision.