I don't see your conclusion as "pretty obvious", it seems to suggest, that a person called to a vocation of Marriage bodies are unholy, because of the martial act.
God calls us into our vocations, and that includes the vocation of marriage. Marriage is a sacrament, and as long as their is an fidelity to the intent of God's plan for the martial act....it's a blessing, not an act of impurity.
I am sorry, if I am misunderstanding you...but that does seem to me, to be what you are saying.
Peace be with you...Pam
Hi Pam

,
I know everything seems muddled. Somewhere along the way, the point became lost.
Virginity was practiced in the garden. There was no intimacy, until Adam knew Eve and she conceived (Gen 4:1). This was after the fall. Mary has restored what Eve lost, this includes virginity. Although God has sanctified the
marriage act through the Sacrament of Marriage, and is good . . . Virginity is the state of man before the fall, when he walked with God, and is therefore, the higher calling. Where marriage is good, virginity is better (1 Cor 7). The purity of the pre-fall state, Mary restored through Christ, and became what Eve should have,
physically and spiritually. Certainly this does not mean that unless we are all virgins, we can not commune with God. It is a Gift that not everyone has. Those that do have it and are able to abstain from these passions, quench that which is most difficult to quench and thusly, have denied themselves (something all of us are called to do one way or another), picked up the cross, and followed Him. Christ and Mary, both virgins, are our restored Adam and Eve. There are many implications to Mary's PV, some of which you mentioned in one of your posts. This is simply another aspect to it.
As far as the marriage act being unholy, I would say that no, it is not unholy,
nor is it pure. It is sanctified, set apart from that which is impure. It is good, but only because God made it so through His Sacrament.
Outside of marriage, sex is unclean and impure. Within marriage, it is made clean.
Does this make better sense?

I am not a theologian. Much of what I say, may be confusing because I am only reiterating what the fathers of the Church have said, yet with a mind that can not always fathom the depth of it.
Love,
Christina