The OG revolutionary, Maximilian Robespierre, had this exact view which I also wholeheartedly agree with. In 'civil society' there is no room for the death penalty, it's abhorrent and unjust. But in times of revolution, if the people demand the death of a person it would be unjust to protect them and the death penalty should be wielded to protect the revolution and terrorize the enemies of the people.

But in society, when the force of all is armed against only one, what principle of justice could authorize it to kill him? What necessity can absolve it? A victor who kills his captive enemies is called a barbarian! A grown man who kills a child that he could disarm and punish seems to us a monster! An accused man condemned by society is nothing else for it but a defeated and powerless enemy. Before it, he is weaker than a child before a grown man. Thus, in the eyes of truth and justice these scenes of death that it orders with so much ceremony, are nothing but cowardly assassinations, nothing but solemn crimes committed not by individuals but by entire nations using legal forms. However cruel, however extravagant the laws, do not be surprised: they are the work of a few tyrants, they are the chains with which they weigh down the human race, they are the arms with which they subjugate it, they were written in blood.

-From 'On the death penalty', 1791

It has been said that terror is the spring of despotic government. Does yours then resemble despotism? Yes, as the steel that glistens in the hands of the heroes of liberty resembles the sword with which the satellites of tyranny are armed. Let the despot govern by terror his debased subjects; he is right as a despot: conquer by terror the enemies of liberty and you will be right as founders of the republic. The government in a revolution is the despotism of liberty against tyranny. Is force only intended to protect crime? Is not the lightning of heaven made to blast vice exalted?

The law of self-preservation, with every being whether physical or moral, is the first law of nature. Crime butchers innocence to secure a throne, and innocence struggles with all its might against the attempts of crime. If tyranny reigned one single day not a patriot would survive it. How long yet will the madness of despots be called justice, and the justice of the people barbarity or rebellion? - How tenderly oppressors and how severely the oppressed are treated! Nothing more natural: whoever does not abhor crime cannot love virtue. Yet one or the other must be crushed. Let mercy be shown the royalists exclaim some men. Pardon the villains! No: be merciful to innocence, pardon the unfortunate, show compassion for human weakness.

The protection of government is only due to peaceable citizens; and all citizens in the republic are republicans. The royalists, the conspirators, are strangers, or rather enemies. Is not this dreadful contest, which liberty maintains against tyranny, indivisible? Are not the internal enemies the allies of those in the exterior? The assassins who lay waste the interior; the intriguers who purchase the consciences of the delegates of the people: the traitors who sell them; the mercenary libellists paid to dishonor the cause of the people, to smother public virtue, to fan the flame of civil discord, and bring about a political counter revolution by means of a moral one; all these men, are they less culpable or less dangerous than the tyrants whom they serve? ...

To punish the oppressors of humanity is clemency; to forgive them is cruelty. The severity of tyrants has barbarity for its principle; that of a republican government is founded on beneficence. Therefore let him beware who should dare to influence the people by that terror which is made only for their enemies! Let him beware, who, regarding the inevitable errors of civism in the same light, with the premeditated crimes of perfidiousness, or the attempts of conspirators, suffers the dangerous intriguer to escape and pursues the peaceable citizen! Death to the villain who dares abuse the sacred name of liberty or the powerful arms intended for her defence, to carry mourning or death to the patriotic heart. ...

-From "Principles of Political Morality", February 1794