The social group, after all, is merely himself and the likes of himself.

He is merely shifting the burden from his individual self to his collective self, and in so doing he loses more than he gains.
Thus there is always a sound core in that Individualism which has been preached so long and practised so energetically, especially in English-speaking lands, however great the abuse involved in its excesses.
It is still in the name of Individualism that the most brilliant antagonists of eugenics and of birth-control are wont to direct their attacks.

The counsel of self-control and foresight in procreation, the restriction necessary to purify and raise the standard of the race, seem to the narrow and short-sighted advocates of a great principle an unwarrantable violation of the sacred rights of their individual liberty.
They have not yet grasped the elementary fact that the rights of the individual are the rights of all individuals, and that Individualism itself calls for a limitation of the freedom of the individual.
That is why even the most uncompromising Individualist must recognise an element of altruism, call it whatever name you will, Collectivism, Socialism, Communism, or merely the vague and long-suffering term, Democracy.

One cannot assume Individualism for oneself unless one assumes it for the many.

That is a great truth which goes to the heart of the whole complex problem of eugenics and birth-control.