What phrase have some scholars devised to replace the term “melting pot” theory?

You could use "Ethnic Diversity" or just "Diverse"

Explanation:

A melting pot, if you're referring to America being full of different ethnic groups, you would say America is Diverse. (just an example)

the exclusive possession or control of the supply or trade in a commodity or service.

i think the answer is: cuba wanted to be independent from spain, and the u.s. wanted to end spanish rule in the west.

hope i

-lavira : )