"The Americans have told the Russians that if you explode a nuke, even if it doesn't kill anybody, we will hit all your targets (positions) in Ukraine with conventional weapons, we’ll destroy all of them," Polish Foreign Minister Radoslaw Sikorski told the Guardian.
Continuing the suppression of nuclear weapon use in wars is important for far, far more people than just Americans, or even just the west. A hostile use of nuclear weapons will trigger an extreme reaction from across the political and global spectrum.