How would you describe the relationship between the major world religions today? how do those relationships manifest in the united states today?

The 3 major world religions today are: Christianity, Islam, and Judaism. The 3 of them are related because they share the same beliefs and are also Abrahamic Religions. Those relationships manifest in the United States because although they are the same but also different, they coexist in the same country in known as the "melting pot".

the constitution of the united states gave congress the absolute authority over immigration laws

the main reason that the constitution did not proclaim all men to be free and equal is because of the issue of slavery.