Sure. Just as long as you also jail every conservative who, in a flash of anger, made a similar stupid, unfiltered, butt hurt, meaningless but unlawful threat toward a covered public official following an election where their candidate lost. People say stupid things they later regret all the time. Unfortunately, the Internet, and especially the echo chambers a lot of these social media sites are, allow them to propagate their stupidity at the speed of light. Worse yet, it is there forever as nothing is really lost once it has been posted.
Something to think about when tempted to lash out.
Threatening the life of the President is a CRIME; last time I checked.