Multiculturalism, like almost every other topic, has its good and bad sides to it. It is almost impossible to find a place in this world (especially the more famous and popular places) where there is only two or less cultures. The free world that we live in gives us the option to openly change locations which has plenty of benefits but some cons as well. While some might be delivering great value to our lives, some other are a potential thread and we should be aware of the risks. Here is some information about the pros and cons of multiculturalism.
List of Pros of Multiculturalism
1. Probably the biggest advantage of multinational society is the diversification. Different nations under one “roof” means that the experience you will gain is unmatched, especially in your own country. Different people will give you different opinions, knowledge, points of view, solutions and of course – cultures. Your daily meal will have a big change as well – yes, while the fast foods are everywhere and they taste the same, a real night out (or in) with new friends will show you meals you have never tried before (or you can show them some of your weirdest, traditional foods from your homeland).
2. Learning a new language – just like with the food you can start having fun with words and if you decide that you like the whole language – invest time in mastering it – there are not many more interesting things in our lives than learning a new language.
List of Cons of Multiculturalism
1. The same differences in cultures can bring up some cons as well when we talk about different societies. While some might be a great value in our lives, some other are a bit more less positive. Usually the problems here are economical and political – when big masses are changing locations, they bring everything from the homeland with them and the natives are not fond of that.
2. The language barrier (in the beginning mostly) can be a big trouble maker. Some natives are even concerned that the newcomers can change the way their language sound in the near future. Some people are firmly standing behind the statement that there are cultures impossible to co-exist together – too many differences that are hard to overlook and if such a situation is brought up in real life, everyone stays firm in their position – accidents happen.
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Background and contextMulticulturalism (Wikipedia) The term multiculturalism generally refers to a de facto state of both cultural and ethnic diversity within the demographics of a particular social space. Some countries have official, or de jure, multiculturalism policies aimed at preserving the cultures or cultural identities — usually those of immigrant groups — within a unified society. In this context, multiculturalism advocates a society that extends equitable status to distinct cultural and religious groups, no one culture predominating. Multiculturalism generally allows for the extension of legal recognition to specific minority groups (Black, White, Hispanic, Christian, Muslim...) and even special legal protections for the members of these groups.
Assimilation (Wikipedia) Cultural assimilation (often called merely assimilation) is a process of consistent integration whereby members of an ethno-cultural group (such as immigrants, or minority groups) are "absorbed" into an established, generally larger community. This presumes a loss of many characteristics of the absorbed group. All of this is legally re-enforced, within the assimilation model, by laws that forbid any formal governmental recognition being given to groups of different kinds . Legally, all citizens are simply recognized as citizens, as opposed to "French Algerians" for example.
The two approaches are quite different. The contrasts between them are often given comparative analysis in France (assimilation) and Britain (multiculturalism). The world continually refers back to these two case studies in order to weigh the pros and cons of these two social models. With both countries holding tight to these different models, and with other countries diverging in their choice between them, the debate continues to be hotly contested and highly important to how societies deal with diversity in an attempt to construct the best, healthiest, safest, most dynamic, and most productive nation and world.
In North America, the United States is more representative of the assimilationist approach, being popularly known as a melting pot, while Canada is more representative of the multicultural approach, being known as a multicultural mosaic. There is not necessarily a clear division between the assimilationist and multicultural approach, because, although nations officially align themselves with one system or another, in terms of real-world scenarios, elements of either approach exist within nations with either official policy. Assimilation may be either voluntary or forced, ranging in a wide variety of tactics, from simple social exposure to violent re-education. With assimilation, there may be a prevailing sense of collective cultural norms to adhere to, or assimilation may be achieved through education, social activities, and participation in mainstream culture. More extreme methods of assimilation may include questionable tactics  of cultural domination, imperialism/colonialism, slavery, forced conversions, financial motivation, and ridicule or shaming.
The multicultural approach attempts to create unity through difference, holding that although a nation's subcultures are diverse, those subcultures share common values. In terms of legal policy, Canada was one of the first nations with an official multicultural act, and they are an officially bilingual nation, using both English and French. Please note, however, that even within Canada, there have been shameful acts of assimilation , so it would be incorrect to assume that any one nation's official policy cancels out the existence of the other side of the debate within national policy.
This is because, despite the existence of official policies, within any one nation (with one or the other policy), there remains tensions between which approach is better, multiculturalism or assimilation.