Diversity in a community can bring serious difficulties, but it can also be a source of benefits.
Diversity in a community can cause tensions. People of different backgrounds with different values have to find a way to get along. People who may see each other as fundamentally different must act as part of a single community. Our history (and our present) in the US shows us that this can be problematic.
However, we can also argue that living in a diverse community is good for us. First, the world as a whole is a diverse place. As the world’s economy and society become more globalized, living in a diverse community can be good for us. It gets us ready to deal with people who are different from us. Second, living in a diverse community makes us more aware of different possibilities and it makes us more aware that our way is not the only possible way. When we live in homogeneous communities, we can become complacent about our ways and convinced that we are right and everyone else is wrong. This makes us intellectually narrow. By living in a diverse community, we are exposed to different ways and forced to broaden our outlook on life.
Thus, living in a diverse community brings benefits even though it can be difficult at times.