They adopted Christianity because it was the same religion as they're European masters at the time.
I'm just shooting here but......
As immigration from europe increased in the early 1800s, citizens who had been born in the Untied States began to fell resentment at the new arrivals. People did like them and opposed the immigrants which is known as nativists.
Let's pray that this helps even a little, cause I am so confused...
<span>the best answer would be that it opposed increased immigration and supported increased requirements for citizenship</span>