Ihave checked in my book where to find the answers but i can't really find any more reasons.

3 main reasons for imperialism:

raw materials:caused imperialism because nations wanted to gain raw materials for their newly developed factories

manufactured goods:caused imperialism because nations wanted to gain markets to sell their goods

white man's burden:caused imperialism because nations felt it was their duty to "civilize" the nations in Africa and Asia

Reasons against  imperialism:

hypocrisy, America claims government to be chosen by the people

America will now be involved in Asian conflicts

thurgood marshall

explanation: in 1954, thurgood marshall and a team of naacp attorneys won brown v. board of education of topeka, kansas. in this landmark decision, the supreme court held that segregation in public education violated the equal protection clause of the fourteenth amendment.

the puritans were a group of people who grew discontent in the church of england the common unity strengthened the community.