Y'all are too fucked up and need to find a Xavier in your lives to have as a parental figure, but maybe one that doesn't want to kill themselves as much as you want to kill yourself.
Grisha and Dina weren't living the cozy suburban life, one was a literal jew-tier roach in a ghetto and the other an exiled noble. Neither of them could live normal lives and knew time was running out. They did the correct thing.
Grisha didn't "groom" Carla or Eren for shit, you can see that he regretted the indoctrination with Zeke and only ever gave Eren the chance to learn about the outside world when he was extremely adamant to know, because of the SL and all, and only even bothered to act and steal the Founding Titan when there were no options left, and gave it to his son because they had a similar drive to freedom as well as the fact that Eren would have more time than him. Don't even give me a (You) after this, please.