What I believe is that marital sexual relations are under-rated and under-stressed, and seen to be the equivalent of fornication outside of marriage.
Celibacy is fully New Testament and it has been a major force in Christianity from the very beginning. From the hermitages of the East, to the cloistered life of monks and nuns in the West, celibacy had been the norm
But so is marriage fully Biblical, including strong support in New Testament books as well. What I have been trying to stress is that marriage does not so much contain sexual relations, but the very essence of sexual relations within marriage and without is different. Sex within and without marriage is as different as Christ and antechrist, as Eucharist and wine and pretzels consumed at a club.
That is why it is not even really ironic that as our societies obsession with all things sexual increases, the birth rate and the will to life, even in the womb, decreases.
Sexual relations inside of marriage and outside of marriage, are not the same thing at all.
Christian celibacy is a call to holiness outside of marriage. To those that seek marriage, abstinence is how one prepares oneself. 'Practicing' outside of marriage in this case does not make perfect. It is corrosive to the marriage itself.