I wasn't aware Trump was calling for the destruction of the United States. Maybe I missed something. When the Frontrunner of the race is showing up to a sparsely attended debate, that would be an excellent time to show up and shine. Winners take every opportunity to win, not slink out of the room like Mittens and Huntsman.
If egomaniac, Trump runs “third party” he will be helping to bring about the destruction of the US.