Vader was redeemed by his love for Luke… cheesy and unearned as that might be.
Kylo currently hates everyone? Really he needs to have a major new characterisation moment or realise he screwed up before falling into a hell of his own making. Something like that.
That’s not true. He cares truly for Rey. Just like how Anakin’s love for Luke brought him back, Ben’s love for Rey will also play a key factor to his redemption.
“You have no place in this story. You come from nothing. You’re nothing. But not to me.”
- Kylo Ren/Ben Solo (The Last Jedi)