You haven’t defined it – because your proposed definition contains words that you haven’t defined. Specifically, you claim he’s undermined America’s interests, but you haven’t explained either what those interests are, or (to the extent you have explained them) you haven’t explained what OTHER interests are implicated, what the balancing weights assigned to each are, and why your view of those weights is the authority here.
Just a few days ago, in a thread questioning a choice President Obama made, I said:
Does your definition of “traitor,” mean ANY act against America’s interests? Or does it make room for an act that may run counter to some of America’s interests in service of supporting another of America’s interests? If the latter, does Trump have the same authority as Obama did?
See? You haven’t defined ‘traitor,’ except by words that still permit slippery, undefined equivocation.