diversity is quite usually a strength
diversity of portfolio
diversity in diet
diversity in thoughts and ideas
diversity in biology
diversity in music and movies
diversity in your reading and studies
diversity in the types of people you congregate with
theres 1 place i can think of where its not a strength....
prison.
For every exams you might try to offer as a "strength"; two examples could be offered that suggest a liability. Mixing drugs, houshold cleaners, metric and standard hardware... On and on. But that really only serves to redirect the conversation from the actual topic. The actual topic is that diversity is not beneficial to the furtherance of our nation, and the continuity of the people who not only founded it, but who are also responsible for its rise to greatness.