So your problem is the human being body, then, in general?
You fear that the pleasures God made for the race of Adam, whom He made male and female, are evil to enjoy?
I think you are very much mistaught by somebody, and I think the spirit behind the ideas you are espousing hates the human being body -period.
Do you know how many times the word rejoice is used by the Creator in Scripture?
Did you know that Adam is made in the very bodily image of God the Word? Did you know that our flesh body is made in the very image of the New Man human being body, which Christ not only put on at the incarnation, but is forever wearing, having taken it back up at His resurrection, and in that body He is sitting on His throne in heaven, glorified and in that body of flesh He is returning?
Romans 5:14 states that Adam [and we are all Adam, as to our kind] is made in the "tupos" -the very mirror image of Christ's human being body.
Revelation 19 certifies that He is returning in that same human being body in which He died =was baptized in death, in.
Rev 19:13 And he [was] clothed with a vesture/garment dipped/baptized in blood/death: and his name is called The Word of God.
Rom 5:14 Nevertheless death reigned from Adam to Moses, even over them that had not sinned after the similitude of Adam's transgression,
who is the figure/image/tupos of him that was to come.
Gen 1:27 So God created man in his [own] image/tselem, in the image of God created he him; male and female created he them.
Jesus was striped for our body's healing, for its regeneration in His New Man human being flesh image.
Yes. Christians celebrate the gift of life each soul born into the world has, among their friends and relations, and they celebrate the birth of Christ come in flesh -even though some of them have the date wrong [it's at this time of year/Tabernacles]; they know its a really big event, and they celebrate it.