The heart of her speech about gay marriage:
It’s important because when a country has different laws for different categories of people, it sends its population a message–that a different group of people with lesser rights are somehow inferior and less deserving respect and are in fact not wholly human. And that message is heard loud and clear by the worst elements in our society. And it instructs them that if they’re looking for somebody to bully, beat or kill….
Start it at the 3:52 mark. That’s when she shines.