Your thinking is all too common as it was in the 1960s and that led to this mess. The USA went from a 5-7% out-of-wedlock birth rate in the early 1960s when direct abortion was illegal to about 41% today when direct abortion is legal and widespread. This is the exact opposite of what proponents for artificial contraception and abortion predicted.
The 1960s champions of artificial birth control fobbed off as "health care" drugs designed to induce a diseased state – prolonged infertility – by poisoning women and devices or interventions which monkey-wrench the human reproductive works, usually in women. They declared that these lifestyle drugs, devices and interventions would prevent out-of-wedlock births, abortion, child abuse, divorce, adultery and more. The 1960s were a time of moonshots, psychedelia and great hope in technology and medicine.
The data are in. After decades of widespread use of these artificial methods, the reported rates of out-of-wedlock births, abortion, child abuse, and divorce have not fallen but have moon rocketed (as have the rates of transmission of sexual diseases). Not groovy. While rates of adultery are difficult to obtain, you may suspect as I do that they have increased. In the USA, unmarried women procure more than 80% of abortions; of the remaining less than 20% of abortions (those procured by married women), a significant percentage may be by women impregnated by men to whom they are not married: abortion in the USA is overwhelmingly a consequence of sex between people unmarried to each other. Further, the majority of women having abortions in the USA were using a "contraceptive" drug or device when they conceived the child they aborted (many so called "contraceptives," besides failing to prevent conception, may also cause a very early abortion); a greater majority were experienced "contraceptive" users but some abandoned these drugs or devices, often because of their side effects which frequently include depression, weight gain and decreased sex drive, for just three examples. How ironic. Should we be surprised by such unintended effects when the intended effect is to produce a diseased state? Might these effects – intended (infertility) and unintended (depression, weight gain and decreased sex drive) - have something to do with adultery and divorce?
The sexual revolution has not so much been tried on an enormous scale and found wanting as it has been tried on an enormous scale and found disastrous. While economic and other factors contributed, that revolution has been fueled largely by the use of artificial “contraceptives.†How much worse must things get before those still clinging to great hopes for these lifestyle drugs, devices and interventions rid the moonbeams from their eyes and shake the psychedelic dust from their bell bottoms?