They just don't like genocide and she supports a genocide. Everyone knows Trump does, so there's is no need to say anything about it, but Democrats like to pretend they don't. If that makes you feel uncomfortable for supporting her, it probably should. Genocide was considered the biggest possible evil in the world until the Dems started supporting it, too. The fact that it seems wrong is why people talk about it, because liberals say they feel bad about it so some of them can be pushed on the issue to resolve this contradiction through to doing something about it, while Republicans gleefully cheer for it, so there's no reason trying to convince them to do anything.

We need to live in those uncomfortable feelings because it might actually force us to think about them and change some shit, or to at least realize the system is fundamentally broken. It can prompt questions, like If we can't vote out a genocide, do we live in a good democracy? Why are some issues up for debate and not other issues? If our system and democracy is broken, should we be stomping around the world criticizing others' in Venezuela, China, Cuba, Mexico, Bolivia, etc? Is there a different reason we do so, like imperialism? Have other claims about the US being the good guy at all times been wrong as well? What current propaganda are we buying into? When people confront these wrongs and ask questions about why things are the way they are, it can also encourage them to study history and capitalism to find out why.

Or, you can be like those outside the DNC, rushing past the protestors, closing your eyes and plugging your ears, then act surprised and distraught when your life is made worse because the adventures abroad from candidates you supported blow back on us through terrorism, fascism, and immigration. But if we never think about the contradictions of our own positions and policies, we're no better than the cult of Republicans, are we?