They are all smiling because they believe they deserve greater rights than you and I do. Of course, if the tables were turned, we’d never put their rights to a vote, because we have character.
A few minutes ago, somebody posted this picture and quote on Facebook, and I’m not sure how new/old it is, but it so simply encapsulates the worldview of the people in the above video [click to embiggen, of course]:
[h/t Joe for the video]