Against this it might be argued that the desired result will never be wholly attained, because the most effective means of birth control involve some expense, and because their effective use presupposes a certain amount of foresight and self-control which is not always found among the lower strata of society.
Despite certain dangers accompanying a widespread dissemination of the knowledge of how to limit births, it seems to be the opinion of most eugenists that if free access to such information be not permitted that at least such knowledge ought to be given in many families, where it would be to the advantage of society that fewer children be produced. Such a step, of course, must be taken on the individual responsibility of a doctor, nurse or other social worker. A propaganda has arisen during recent years, in the United States, for the repeal of all laws which prohibit giving knowledge about and selling contraceptives. Whether or not it succeeds in changing the law it will, like the Bradlaugh-Besant episode, spread contraception widely. This propaganda is based largely on social and economic grounds, and is sometimes unscientific in its methods and avowed aims. But whatever its nature may be, there seems little reason (judging from analogy in European countries) to believe that it can be stopped.
The "infant mortality movement" also has an effect here which is rarely recognized. It is a stock argument of birth control propagandists that a high birth-rate means a high rate of infant mortality; but A. O. Powys has demonstrated that cause and effect are to some extent reversed in this statement, and that it is equally true that a high rate of infant mortality means a high birth-rate, in a section of the population where birth control is not practiced. The explanation is the familiar fact that conception takes place less often in nursing mothers. But if a child dies early or is bottle-fed, a new conception is likely to occur much sooner than would otherwise be the case. By reducing infant mortality and teaching mothers to feed their babies naturally, the infant mortality movement is thereby reducing the birth-rate in the poorer part of the population, a eugenic service which to some extent offsets the dysgenic results that, as we shall show in the last chapter, follow the "Save the Babies" propaganda.
With the spread of the birth control and infant mortality movements one may therefore look forward to some diminution of the differential element in the birth-rate, together with a further decline in that birth-rate as a whole.
Such a situation, which seems to us almost a certainty within the next decade or two, will not change the duty of eugenics, on which we have been insisting in this chapter and, to a large extent, throughout the present book. It will be just as necessary as ever that the families which are, and have been in the past, of the greatest benefit and value to the country, have a higher birth-rate. The greatest task of eugenics, as we see it, will still be to find means by which the birth-rate among such families can be increased. This increase in the birth-rate among superior people must depend largely on a change in public sentiment. Such a change may be brought about in many ways. The authority of religion may be invoked, as it is by the Roman Catholic and Mormon churches[127] whose communicants are constantly taught that fecundity is a virtue and voluntary sterility a sin. Unfortunately their appeal fails to make proper discriminations. Whatever may be the theological reasons for such an attitude on the part of the churches, its practical eugenic significance is clear enough.
Nothing can be more certain than that, if present conditions continue, Roman Catholics will soon be in an overwhelming preponderance in the eastern United States, because of the differential birth-rate, if for no other reason; and that the Mormon population will steadily gain ground in the west. Similarly, it is alleged that the population of France is gradually assuming the characteristics of the Breton race, because that race is the notably fecund section of the population, while nearly all the other components of the nation are committing race suicide (although not so rapidly as is the old white stock in New England). Again, the rôle of religion in eugenics is shown in China, where ancestor worship leads to a desire for children, and makes it a disgrace to be childless. A process analogous to natural selection applies to religions much as it does to races; and if the Chinese religion, with its requirement of a high birth-rate, and the present-day American Protestant form of the Christian religion, with its lack of eugenic teaching, should come into direct competition, under equal conditions of environment, it is obvious that the Chinese form would be the eventual survivor, just because its adherents would steadily increase and those of its rival would as steadily decrease. Such a situation may seem fanciful; yet the leaders of every church may well consider whether the religion which they preach is calculated to fill all the needs of its adherents, if it is silent on the subject of eugenics.
The influence of economic factors on the birth-rate is marked. The child, under modern urban conditions, is not an economic asset, as he was on the farm in earlier days. He is an economic liability instead. And with the constant rise of the standard of living, with the increase of taxation, the child steadily becomes more of a liability. Many married people desire children, or more children, but feel that they can not have them without sacrificing something that they are unwilling to sacrifice.
Analysis of this increase in the cost of children, reveals not less than five main elements which deserve attention from eugenists.
1. It costs more to clothe children than it used to. Not only does clothing of a given quality cost more now than it did a decade or two ago, but there are more fabrics and designs available, and many of these, while attractive, are costly and not durable. Compliance to fashion has increasingly made itself felt in the clothing of the child.
2. It costs more to feed them than it used to. Not only has food for everyone increased in price, but the standards for feeding children have been raised. Once children were expected to be content with plain fare; now it is more frequently the custom to give them just what the rest of the family eats.