The Red Scare was the term to describe that
Well, technically the religious unity never ended. I am not religious, but religion has been and will be apart of our society for as long as we can imagine.
The Monroe Doctrine's main purpose was to "<span>D. to warn European nations not to form new colonies in the Americas". It was a declaration of true sovereignty in the US. </span>
He would support it because he claimed that the rights mentioned are unalienable and are self-evident. It is the duty of the law and the state to protect these rights because nobody has the right to take them away. They will only be forbidden if others try to take take those rights away from you. If someone tries to kill you, they go to jail, that is a simple way of explaining it. He tried to take your life so you take his liberty.