There must be renewed recognition that societies are kept stable and healthy by reform, not by thought police; this means there must be free play for so-called subversive ideas - every idea subverts the old to make way for the new. To shut off subversion is to shut off peaceful progress and to invite revolution and war.
You have to take the long view. First, when Moses came down from Mt. Sinai, man has already progressed to the point where a commandment against cannibalism was no longer necessary. And, second, it's like pissing on a boulder. For the first few thousand years, you don't see any effect. But after that, you start to see a definite impact.
Victor Serge died in exile and obscurity, apparently no more than a splinter of a splinter in the Marxist movement. But with the passage of the years, he looms up as one of the great moral figures of our time, an artist of such integrity and a revolutionary of such purity as to overshadow those who achieved fame and power. His failure was his success. I know of no participant in Russia's revolution and Spain's agonies who more deserves the attention of our concerned youth.