If ALL of mankind was literally in the loins of Adam when he ate of the forbidden tree of the Knowledge of Good and Evil, resulting in HaShem expelling him from the Garden of Eden and the Tree of Life therein, then how is the Jew ‘Redeemed’ from the Adamic consequence of ‘Death’? 

This Adamic Death consequence was irrevocable and was instituted by G-d some 2500 years before the Mosaic Law ever came into existence, therefore it supersedes the Mosaic Law. 

Moreover, while it may indeed be true that temporal Atonement for Sin with respect to the Written Scripture (Torah) and the Mosaic Law existed in two parts, the fervent repentant confession and the cultic sacrifice, whereas the fervent repentant confession by itself could achieve temporal Atonement in times of Jewish captivity as a consequence of the absence of the Temple and High Priest ( i.e. greatly beloved Daniel 9:23 and his long Babylonian captivity).  It could NOT however affect ‘Redemption’ from the Adamic consequence of Death.  Likewise, Solomon declared in 1 Kings 8:46 the consequence of Adams Sin - "for there is no man that sinneth not."  This is also echoed by Apostle Paul in Rom. 5:12 as well. (emphasis added) 

1 Kings 8:46 (KJV)
46 If they sin against thee, (for there is no man that sinneth not,) and thou be angry with them, and deliver them to the enemy, so that they carry them away
 captives unto the land of the enemy, far or near;

To this end, there is NO man subsequent to the Adamic fall that can walk absolutely Righteous before HaShem without Sin (Rom. 3:10), excluding Yeshua of course, absent the benefit of individual Atonement…not even the great beloved prophet Daniel himself.  However, Daniel could find a suggested avenue for Atonement in the following Passages. (emphasis added)  PLEASE take special note of Dan. 9:3-23 in the OT as well, and Daniel’s personal fervent prayer of petition and confession before HaShem, for both his people and himself… which in verse 9:23 is answered by Gabriel characterizing Daniel as the ‘one greatly beloved’.  As such, ask yourself this question, would Daniel have even prayed such a prayer if he had thought that there was no hope in HaShem answering his petition of clemency for 'temporal' Atonement for his sin.  

Moreover, in each of these Passages cited below there is never the mention of a cultic sacrifice for the Atonement of Sin, but rather only a fervent cognitive repentant confession of Sin.

2 Chronicles 7:14 (KJV)
14 If my people, which are called by my name, shall humble themselves, and pray, and seek my face, and turn from their wicked ways; then will I hear from heaven, and will forgive their sin, and will heal their land.

Deuteronomy 4:29-31 (KJV)
29 But if from thence thou shalt seek the LORD thy God, thou shalt find him, if thou seek him with all thy heart and with all thy soul.
30 When thou art in tribulation, and all these things are come upon thee, even in the latter days, if thou turn to the LORD thy God, and shalt be obedient unto his voice;
31 (For the LORD thy God is a merciful God;) he will not forsake thee, neither destroy thee, nor forget the covenant of thy fathers which he sware unto them.

Jeremiah 29:12-14 (KJV)
12 Then shall ye call upon me, and ye shall go and pray unto me, and I will hearken unto you.
13 And ye shall seek me, and find me, when ye shall search for me with all your heart.
14 And I will be found of you, saith the LORD: and I will turn away your captivity, and I will gather you from all the nations, and from all the places whither I have driven you, saith the LORD; and I will bring you again into the place whence I caused you to be carried away captive.

Meanwhile, is it reasonable to assume then that G-d would leave 'Righteous' men such as Daniel, Shadrach, Meshach, Abednego, and his 7,000 reserved (1 Kings 19:18) without the possibility and option of individually Atoning for their Sins?

Therefore, if Death through Adam passed upon ALL mankind as the Torah suggests (we ALL still die), then this implies that Death is a greater force than man and by himself alone, man is incapable of removing Death from himself – thus, just as creation requires a creator, Redemption from Death requires a Redeemer – hence, Yeshua Jesus.  

Going forward, to suggest that G-d has never required a human sacrifice is not supported by the Written Torah in which Abraham was asked by HaShem to sacrifice his ONLY son Isaac (a type of Christ - the Redeemer).  For all practical intentions Abraham completed the sacrifice of his only son in his heart by FAITH.  (emphasis added) 

Genesis 22:2
2 And he said, Take now thy son, thine
only son Isaac, whom thou lovest, and get thee into the land of Moriah; and offer him there for a burnt offering upon one of the mountains which I will tell thee of.

Genesis 22:6  
6 And Abraham took the wood of the burnt offering, and laid it upon Isaac his son; and he took the fire in his hand, and a knife; and they went both of them together.

Genesis 22:8-10
9 And they came to the place which God had told him of; and Abraham built an altar there, and laid the wood in order, and bound Isaac his son, and laid him on the altar upon the wood.
10 And Abraham stretched forth his hand, and took the knife to slay his son.

Genesis 22:11-12
11 And the angel of the LORD called unto him out of heaven, and said, Abraham, Abraham: and he said, Here am I.
12 And he said, Lay not thine hand upon the lad, neither do thou any thing unto him: for now I know that thou fearest God, seeing thou hast not withheld thy son, thine
only son from me.

Genesis 22:16  
16 And said, By myself have I sworn, saith the LORD, for because thou hast done this thing, and hast not withheld thy son, thine
only son: