Stop using Vader to justify bendemption
Kylo: Privileged boy with loving parent rejects entire family, everyone who tries to help him, the guidance from his uncle, and goes out of his way to harm and torture others and shows no remorse for it. Yet people want Kylo redeemed? And to live after he is redeemed?
Anakin: born into slavery to a loving mother, feels powerless after he can’t stop her death, is raised by Jedi who tell him to repress his emotions, loses faith in Jedi out of fear for Padmé’s life and falls to the dark side.
“But Vader was redeemed and he killed kids”
Well, no shit but Vader is different than Kylo (in no particular order)
1) Vader paid the ultimate price for his redemption. Anakin was the chosen one, and he destroyed the Sith, i.e. Palpatine (until IX anyways) and Vader. He immediately dies after he’s redeemed, in part, because of the price he paid for turning to the dark side and staying at Palpatine’s side for nearly 2 decades.
2) The first time (in a movie), that we see Vader begin to crack is in RotJ- the conversation he has with Luke on the forest moon of Endor clearly rattles him and is the first step in his return to the light. Kylo has had more than one chance to return to the light in both movies and has rejected them, preferring the darkness and the power he gains with it.
3) When Anakin turned, he lost everyone he loved, even though he fell out of fear for Padmé’s life. Kylo still has his whole family out there, and kills Han when he tries to bring him back. Later, he can’t bring himself to pull the trigger to kill Leia, but has no problem ordering his troops to enter the Resistance base and kill everyone.
Do I really need to go on??
The first time (in a movie), that we see Vader begin to crack is in RotJ- the conversation he has with Luke on the forest moon of Endor clearly rattles him and is the first step in his return to the light. Kylo has had more than one chance to return to the light in both movies and has rejected them, preferring the darkness and the power he gains with it.
Actually, I feel that the first time Anakin cracked was via his lack of response from the Falcon’s escape from Bespin in “The Empire Strikes Back”.
All this, and also Kylo Ren is very blatantly and consciously the antithesis of Vader. They have opposite arcs. Vader starts at the height of his power and terror and increasingly doubts himself before he kills his Master to save his son. Kylo Ren starts out doubting himself and grows into increasing power and terror by killing his father and then his Master. It makes no sense for Kylo to do a 180 at this point and follow Vader's arc instead of his own, something explicitly teased and then discarded in TLJ.