Well, one historical problem with large scale immigration in the United States was the notion that immigrants were taking American jobs. If you look back into the early 1900's, when New York had a large number of Western European immigrants coming into the city, many business owners would put up signs like, "Help Wanted - Italians Need Not Apply", and this was interchangeable for any group business owners did not want applying for open jobs.
This claim is not entirely false though; the Center for Immigration Studies (CIS) has done research into immigration's effects on employment in the United States. By adding immigrants to the workforce, the U.S. GDP (gross domestic product) increases by $1.7-2 trillion a year. They have concluded that Americans hit by the brunt of this influx of immigrant workers are ones who are less-educated, most likely seeking blue-collar jobs, where immigrant workers would work for less than Americans.
Source: https://cis.org/Testimony/Impact-LargeScale-Immigration-American-Workers
Furthermore, if you are discussing illegal immigration, a massive issue is the literal disappearance of illegal immigrants once they enter the United States. As we can see from border issues today, the infrastructure cannot handle the sheer numbers of immigrants coming in, and once immigrants are caught, registered, and released into the country, it is very difficult to track them moving forward. This also encourages human trafficking over soft borders; it is estimated that drug cartels make over $150+ billion a year trafficking women and children over the U.S.-Mexico border.
It was known as trial by ordeal and one of the concepts were by two parties fighting each other and whoever lost was guilty
Because it limits speech that is critical of government
Well, once the Americas were discovered and the colonist found that the soil was agreeable to grow different crops such as tobacco and cotton the colonists realized that they needed people to pick the crops. Originally indentured servants did the hard labor but then when they found that they could get labor by trading goods with African tribal leaders they resorted to importing Africans to the Americas as labor. The tribes in Africa were constantly fighting and whichever side won the losers became the slaves of the winning tribe. However, as Europeans brought valuable things to the continent of Africa such as weapons, salt, gold, and other things the leaders of the winning tribe would give their slaves to the Europeans. There were cases when Blacks captured other Blacks in Africa for the sole purpose of giving them to the European traders. Hopefully this helps. If you haven't see the movie La Amistad, it will explain in more detail what I have written. I learned a lot from that movie. I must warn you the first 5 to 10 minutes are a bit gory. I had a hard time watching that part.
Jesus showed compassion for all and helped them: the poor, the despised, the outcasts, and wants us to do the same (Matt. 4:24-25;9:9-13).
The Christian life is marked by baptism (Matt. 3:13-17).