Soo if I hit you with this through the heart, you wouldn't die?
(Raiton: Chidori Eiso) - Lightning Release Chidori Sharp Spear
Rank: A
Type: Offense
Range: Short/Mid
Chakra Cost: 30
Damage Points: 60
Description: The user increases the range of their Chidori by using form manipulation to extend it into a blade up to 10 meters in length. This blade is capable of splitting into multiple additional blades upon contact with an enemy, drastically increasing the number of wounds it can inflict. Like other Chidori-related techniques, this jutsu will numb its target upon contact.
Also your examples aren't very good ones, since Jiraiya was stabbed and his throat crushed (last i checked there not given ranks) and he basically used Willpower of the heart to keep alive and even then It was all for the plot, Naruto can go through hell but will never die (maybe at the end) simply because he's the main character. Jiraiyas death was meant to portray a message "to never give up, no matter what" he fought back through sheer willpower because this fight would define his life and what the future would hold.
What do you mean by Pain dying four times against naruto? If you mean the paths actually say them (if your talking about asura path, ofc he's going to survive those he's a machine not a human being (well not anymore)) or your words are going to be misconstrued (

)
Also the only reason Itachi survived Kirin was because he used Susano'o to block it before it hit him.
You have no argument, because you use crappy examples and don't put details into your statements thus they become misconstrued.