People are able to witness different cultures
If each society were homogeneous in its culture, people would never be exposed to other traditions. When heterogeneity is introduced in a society, people witness differences between their own culture and others. This inspires an appreciation for one's own culture, an interest and curiosity to learn about others, and a powerful social dynamic of group interaction.
Culture
Ethics
Society
(1 of 2)
Next argument >
The Argument
If "melting pot' actually referred to food, society would be the pot and various cultures would be the ingredients added into the pot. Like any good soup/stew, a variety of ingredients allows for the best taste. Each ingredient (culture) is unique and special on its own, but when combined with others, can create a meal (society) that is masterful.
Cultures can appreciate and learn from one another when interaction occurs. The contrast between various traditions allows for greater pride and identification with a person's heritage. The recognition of uniqueness underlines the foundation for a lively and dynamic community.
Counter arguments
Framing
This argument rests upon the fact that humankind tends to be supportive, accepting, and appreciatory towards differences. This is a positive, optimistic outlook.
Premises
[P1] Different cultures pique the interests of others.
[P2] The dynamic that multiculturalism adds is a positive force.
Rejecting the premises
[Rejecting P2] People most often reject what is foreign to them, resulting in distress.
Further Reading
https://www.thoughtco.com/what-is-multiculturalism-4689285