I think executing French supporters of the Austrian and Prussian monarchies was justified? Explain

The absolute monarchy which before had brought so many benefits to the development of commerce and the French bourgeoisie was now an obstacle. Mercantilism laws kept goods from being sold freely. Officers prevented the development of faster manufacturing processes. In short, absolute monarchy was an obstacle, preventing the modernization of France. This obstacle needed to be removed, and defenses of this political system were perceived negatively by the rest of the population seeking a revolution, and many times they were seen as personal and political enemies during a war. Which justifies the executing of French supporters of the Austrian and Prussian monarchies.