America is a country ruled by law. Why did Trump punish illegal immigrants on a large scale? What is the reaction of American society?

Many Americans are not opposed to managing illegal immigrants, but to Trump's ruling style. His presidential executive order called for the suspension of accepting refugees, refusing people from seven Muslim countries to enter the United States, even though these people have legally obtained visas to enter the United States, and building a wall on the US-Mexico border to stop illegal immigrants from Mexico. These policies are obviously suspected of racial discrimination and religious discrimination, which runs counter to the values of many people in American society.