Were you correct, it would make man his own savior - you would replace Christ as Savior with man.
Standardized Calvinist fallacy, utterly annihilated effortlessly as you plainly see here.
And BTW, the saved do surely understand the dynamics of this scenario, and where they stand in relation to it.
Evidently you flunked out of Passover 101, as do the rest of the Calvinists around here.
[Exo 12:3 KJV]
Speak ye unto all the congregation of Israel, saying, In the tenth [day] of this month they shall take to them every man a lamb, according to the house of [their] fathers, a lamb for an house:
[Exo 12:7 KJV]
And they shall take of the blood, and strike [it] on the two side posts and on the upper door post of the houses, wherein they shall eat it.
[Exo 12:8 KJV]
And they shall eat the flesh in that night, roast with fire, and unleavened bread; [and] with bitter [herbs] they shall eat it.
[Exo 12:11 KJV]
And thus shall ye eat it; [with] your loins girded, your shoes on your feet, and your staff in your hand; and ye shall eat it in haste: it [is] the LORD'S passover.
[Exo 12:12 KJV]
For I will pass through the land of Egypt this night, and will smite all the firstborn in the land of Egypt, both man and beast; and against all the gods of Egypt I will execute judgment: I [am] the LORD.
[Exo 12:13 KJV]
And the blood shall be to you for a token upon the houses where ye [are]: and when I see the blood, I will pass over you, and the plague shall not be upon you to destroy [you], when I smite the land of Egypt.