As an employer, I would never state it that way. I would however make it clear that if the tax structure and scheduled changes take place I will be forced to lay off people. Same message, more carot, less stick.
I suppose one could manage to be overheard expressing concerns to managers about the need to keep the worker bees from worrying despite the inevitable necessity of laying most of them off should obama win, and that we should do all we can to keep them happy until the end...
I believe in communicating to employees clearly and tell them the cause and effect.
For example, if there was a bomb connected to a red flashing button, don’t you think you owe it to people in the area they shouldn’t push the button otherwise a bomb will go off?
What good is it to tell them if you don’t tell them how they can help prevent the loss of their jobs?