Earlier quoted context omitted.
> when the looting starts the shooting starts Harsh words, but at the end of the day, people will defend their property with a gun and have every right in doing so.
Trump was talking literally about directing the military to shoot looters (it's right there in the tweet!), not expressing an abstract right of people to defend their own property. So no, downvoting you isn't anything to do with the constitution.
Uhm, no