The fact that Republicans wouldn’t do that doesn’t change the fact that there are undecided voters that would do that. If you think non-whites aren’t capable of being as conservative as republicans, you’re going to be disappointed time and time again.
Hope and positivity are two different things. Hope dissociates from the present and the future, externalizing your care into an imagined future you can not affect. Empirically, people with hope fare worse psychologically than those without hope, because those with hope have no coping mechanisms when their hopes get dashed.
What we need is not positive news, but a positive life. Sit in a meadow, share meals with friends, be kind and generous, work at things that mean something to you, make art with passion, and rage during political protests.
When so much of the world’s news and media are pushing a narrative of unending consumerism and growth, it is good to keep reminding ourselves with factual news that this world will collapse sooner rather than later.
If it helps, all life ends in misery, be it decreptitude, disease, ecosystems collapse, or all of the above. Life has never been about how it ends, it is about what we do while delaying the end. Everything we do for the future, we do for the future that will actually be, not for the future that gives us comfort to imagine.