—> Intercourse also has the purpose of the union between man and wife but this does not take away the biologically undisputed purpose of procreation.
God, who created sex, says it is for pleasure as well…
We have no disagreement if we keep that pleasure within marriage. The pleasure is what leads to the union of man and wife. It is not a question of either/or but of both/and. God made the marital act pleasurable in order to encourage it but the biology established by God shows that its purpose is procreation. What say you of sodomy within marriage? Some find it, too, pleasurable.