The Bible actually completely contradicts the Catholic position BoL. Jesus was born into that mud-pile. Jesus did NOT need to be born of an immaculate person in order to be Who He is. He was born, according to the full context of Hebrews 2:14-18, especially v16, of the same flesh and blood of the seed, the descendants, of Abraham, not the ancestors. He took upon Him the nature of fallen mankind, of Adam after the fall, not before. He was born with the same liabilities, the same fallen nature that we are born with, the difference being that He, with the help of His Father, did not sin. He was born with the very same nature we are born with...there is no such thing as original sin. We are born with a sinful nature, that tends toward sin, but our sin is a choice we make...we do not HAVE to sin. Jesus successfully resisted every temptation that Satan could hurl at Him. He is our example. By faith in HIm, we too are to overcome on every point and be overcomers. It would have been an almost infinite humiliation for the Son of God to take man's nature, even as Adam stood in his innocence in Eden. But Jesus accepted humanity when the race had been weakened by 4000 years of sin. Like every child of Adam He accepted the results of the working of the great law of heredity. What these results were is shown in our earthly ancestors. But He came with such a heredity to share our sorrows and temptations, and to give us the example of a sinless life.
In our humanity, Christ was to redeem Adam's failure. But when Adam was assailed by Satan, none of the effects of sin were upon him. He stood in the strength of perfect manhood, possessing the full strength of body and mind, surrounded by the glories and beauty of Eden, and in constant fellowship with God and angels. It was not thus with Jesus when He entered the wilderness to cope with Satan. For 4000 years the race had been decreasing in physical strength, in mental power, and in moral worth, and Christ took upon HIm all the infirmities of degenerate humanity. Only thus could He rescue man from the lowest depths of his degradation.
Many claim it was impossible for Christ to be overcome by temptation . Then He could not have been placed in Adam's position. He could not have gained the victory that Adam failed to gain.If we have in any sense a more trying conflict than had Christ, then He would not be able to succour us. But our Saviour took humanity, with all its liabilities. He took the nature of man with the possibility of yielding to temptation. We have nothing to bear which He has not endured.
Jesus is a human just as we are.Yet He also retained His divinity, but laying aside the advantages of divinity, He had no advantage over us in His battle with the enemy. He showed the way to victory, that we may also have confidence that in His strength, as He relied on His Father's strength, that we too can overcome sin in this life. To deny this truth, is merely a means by which one can excuse himself for sinning...and expect to sin till the day he dies.
It might interest you to understand that he who denies that Jesus came in the flesh, is Antichrist. 2 John 1:7