I find it very ironic that a company in NYC full of 20-something (who probably identify strongly with diversity and Dems rather than GOP) insist on hiring people like themselves...
All groups of people selected for some characteristic - whether it's "works for this company" or "wants hillary elected to office" or "was persecuted historically by X" have their own reflexes that exclude "outsiders" or "anyone who is associated with X".
Often at contradictory directions to their stated intent. For example, gay people supporting a candidate who has spent their entire career opposing gay marriage, over candidates and a party that has supported gay marriage for their entire career (and back to the founding of the party.)