What did americans believe they had the right to regarding manifest destiny?

In the 19th century US, Manifest Destiny was a belief that was widely held that the destiny of American settlers was to expand and move across the continent to spread their traditions and their institutions, while at the same time enlightening more primitive nations.

they thoght they were going to nuke each other

religion was the center of there society they practiced human sacrifices and which they believed kept there god strong and that he would keep bad guys away hope this