uh.... Zelaya was elected to office. He was not attempting to stay in office by force. He was discussing a democratic vote to change the constitution to allow an elected president to run for an additional term.
Chavez (and others) sided with most of the democratic world in calling for his return because they agree with the direction of his politics (which the general Honduran population has stated through a democratic vote that they do too...).
So the cartoonist is fundamentally wrong in his message of return the dictator... not necessarily wrong in the implication that Obama is left leaning in his political views...
But the fundamental inaccuracy of the cartoon kinda blunts the impact of the intended message for me.