Frederic Bastiat was a French economist and statesman. During and after the Revolution in 1848, he warned of the inevitable degeneration of socialism into communism in The Law. Previous Bastiat posts can be found here.
From The Law:
Now, legal plunder can be committed in an infinite number of ways. Thus we have an infinite number of plans for organizing it: tariffs, protection, benefits, subsidies, encouragements, progressive taxation, public schools, guaranteed jobs, guaranteed profits, minimum wages, a right to relief, a right to the tools of labor, free credit, and so on, and so on. All these plans as a whole — with their common aim of legal plunder — constitute socialism.
Now, since under this definition socialism is a body of doctrine, what attack can be made against it other than a war of doctrine? If you find this socialistic doctrine to be false, absurd, and evil, then refute it. And the more false, the more absurd, and the more evil it is, the easier it will be to refute. Above all, if you wish to be strong, begin by rooting out every particle of socialism that may have crept into your legislation. This will be no light task.
Mr. de Montalembert has been accused of desiring to fight socialism by the use of brute force. He ought to be exonerated from this accusation, for he has plainly said: "The war that we must fight against socialism must be in harmony with law, honor, and justice."
But why does not Mr. de Montalembert see that he has placed himself in a vicious circle? You would use the law to oppose socialism? But it is upon the law that socialism itself relies. Socialists desire to practice legal plunder, not illegal plunder. Socialists, like all other monopolists, desire to make the law their own weapon. And when once the law is on the side of socialism, how can it be used against socialism? For when plunder is abetted by the law, it does not fear your courts, your gendarmes, and your prisons. Rather, it may call upon them for help.
To prevent this, you would exclude socialism from entering into the making of laws? You would prevent socialists from entering the Legislative Palace? You shall not succeed, I predict, so long as legal plunder continues to be the main business of the legislature. It is illogical — in fact, absurd — to assume otherwise.