Earlier quoted context omitted.
If certain activities have a huge effect on how the world operates, which is kind of the premise of Y Combinator (software is eating the world, etc.) then it's important that the people who call the shots are representative of the people who are affected. This has to happen from the bottom up, since for obvious reasons you can't parachute in "untrained diversity" at a management/strategy level.
Exactly this, if you don't have that level of representation it leads to social problems down the line. The bloodshed in Iran and Iraq are shining examples of the extremes of what can happen. Democracy only works as much as it can provide an outlet for friction from different groups by allowing them an equal share of the system.
The vilification of Peter Thiel solely for supporting a candidate that 40+ percent of the country supports should open some eyes to the problem but I doubt it will.