The U.S. political system is based upon Montesquieu's understanding that power in a nation should be divided between the executive, the legislative, and the judiciary.   Establishing this balance was necessary to safeguard against tyranny.  

During the French Revolution, under Robespierre, Jean Jacques Rousseau's idea of the General Will was invoked.  The general will of the people, as represented by the government, was supreme.  

Those advocating that the judiciary should not have the right to block an executive order are, in essence, suggesting that Robespierre's France had a system of government superior to that of the U.S. founding fathers' America.   

In case you don't know, Robespierre's France didn't work out all that well.