Sorry if this has all already been said; I assume it has, since this thread is seven pages, but I feel compelled to respond anyway, perhaps from an insecure compulsion:
OP, please educate yourself on Natural Family Planning (NFP). I believe in the introduction to the manual, the idea of responsible parenthood is introduced: As the couple becomes aware of their cycles of fertility and infertility, they must responsibly and prayerfully examine their situation and consider what God is calling them to do.
Birth control is not condemned by the Church as God has given it to us, through working in cooperation with healthy fertility and infertility to do God’s will (see NFP, which is just as effective at preventing pregnancy as contraception; I have the study they cite should you care to read it).
What is condemned by the Church is declaring yourself to be God by commandeering your fertility, demanding to be sterile and fertile as you please, declaring that your own opinions of life and death are worth more than God’s. This is sin; this is contraception, contraceptive (against-conception, against God) birth control, the corrupted form of birth control. Many erroneously say “birth control” when they mean contraceptive birth control. (Many also erroneously say “homosexuals” when they mean people who struggle with same-sex attractions; we need to recognize the verbal engineering that we adopt from a corrupt, satanic media: television, film, etc.)
So, fertility and infertility are both gifts from God, just like feasting and fasting. The problem, you could say, is gluttony or starvation, when these gifts are twisted and misused.
I think you are right; too many are being reckless with the gifts of their sexuality, and we see the consequences in our society, in part as you have described. (It is worth noting, however, that in some cases problems of “overpopulation” are really only problems of human greed and apathy, hoarding food and resources from other countries.) We’re all called to be responsible with our gifts, apparently through NFP. (I say ‘apparently’ because I’m still reading about it and am single.)
