Why should I care?
I have no living relatives or family. I have no love who would be distraught if I disappeared. Why should I care whether the world ends through nuclear annihilation, climate change catastrophe, or hyper-tech warfare?
There is no obvious, existing reason; nevertheless, I still care. Maybe it is because I was born half way between Hitler manuevering himself into being Chancellor of Germany and FDR's speech "We have nothing to fear but fear itself." Whatever the reason, I have felt a life-long desire to try to end man's inhumanity to his fellow man...and woman sister's to sister fellow woman.
So I can only say: We must stop the brutalities of war. We must stop the demonization of others, of "the other."
For example: Putin is not our enemy. His actions of late clearly demonstrate that he understands a nuclear conflict can only mean the annihilation of our life on earth.