People are not saints, they can have blind spots or being more sensitive to certain issues than others. We are not perfect, you can find people that give substantial charity to the poor but don't pick up their own thrash from the sidewalk (random example of course).
The point is, we're all in this together, and as Grappler said, certain things should trascend politics. We get out of this together and one would think that the scare of having problems to breathe and needing to lie down 8 hours in ICU (while you couldn't even attend the funeral of your own grandma) would be enough but we're evidently wrong about it.
The Cold War was cold because of the concept of mutual assured destruction - we'd probably need to remember that, we're all together on our only home, this little planet. Something that happened in China reached the entire world in weeks. If this diidn't give us unity, probably not even an alien invasion will.