They were afraid of large numbers of Jews coming in from (in the case of the St. Louis) Germany. 900 people is a lot of people but it would only be the tip of the iceberg if people were allowed to cross the Atlantic and go into the United States. There was a quota of how many people could come in and the US wanted to keep to the quota system.
The United States (at the time of the St. Louis sailing) was neutral, so they also didn't want to endanger that neutrality.
The problem of how much power the federal government should have has been a problem in history for ages. This can be seen after the Revolutionary War with the Articles of Confederation. Many people were scared of the federal government obtaining power after the Revolutionary War, as a lot of people did not want to have what happened with Great Britain happen again.
Amendment X, or the Tenth Amendment, states that the "<em>powers not delegated to the United States by the Constitution, nor prohibited by it to the states, are reserved to the States respectively, or to the people</em>."
This statement limits the power of the federal government by granting all powers that are not already granted to the government to the citizens or the people. The federal government does not have all of the power to do everything and the power to do certain things are with the states and the people. This can be seen with local taxes, certain licenses, elections, and other things.
They were located near water they hunted for food and made everything out of natural environment
Different location , rituals, and hunting ways or animals
