Providing two separate case studies, Kisha Tracy and Katharine Covino explain why diversity is so important now and offers us an opportunity to resist:
Embracing diversity, in all its forms, promotes critical thinking and empathy ... In such a place and time, forefronting diversity takes on an overtly political mien, becomes an overtly political act. Promoting diversity in a time when diversity is viewed negatively offers educators an avenue of resistance. It is imperative that we not shrink from this duty, but rather that we embrace it. We must model through our pedagogy that we see, know, and value each and every student sitting in front of us not in spite of their differences, but because of them. (Source)
Another take on the topic is Ellen Ullman and her discussion of diversity and perspective.