The royal family of Avalor was royally screwed up by Shuriki. Due to the sorceress’ conquest this family will be hurting for a long time.
The grandparents lost their only remaining child which alone is terrible but due to their magical exile they are now bound to live in a completely different world. All their peers are dead. They have to get used to new customs, new fashion, new technology. They missed years of their grandson’s life whom they were raising as their own son for a while. Plus the guilt of leaving Elena and him behind to deal with Shuriki while they are safely out of her reach. Then they have to get used to the fact their little boy has (for them overnight) become a grown up man they hardly know.
Similarly Isabel has lost her childhood friends because they have moved or simply became adults (also not all people are lucky enough to survive into adulthood even nowadays, in the past it was a lot worse). The family is all she has for now before she builds new relationships and when Esteban, Elena and grandparents are busy running a kingdom she must feel very lonely. Also from her point of view she lost her parents yesterday. She’s still very much mourning, same for Louisa and Francisco.
Elena spent decades in magical prison and we don’t know how conscious she was. She may have been in magic induced coma, she may have been perfectly conscious without the ability to communicate with the outside world. Four decades of forced isolation does a number on your sanity. Also technically she’s 57, has body of a 16 years-old teenager but her mind is neither a normal teen nor a fully matured mentally intact adult due to the lack of contact and magical effects.
Esteban had it rough, too. Given he’s 50 in the present, he was 9 when Shuriki murdered his uncle and aunt and caused the rest of his family to vanish out of his life in one way or another. Mind you, we’re talking about a guy who lost his parents when he was a kid and his secondary parental figures disappeared for 41 years. Then he was probably taken as political hostage as the only member of the royal family who’s alive and present in flesh and blood, therefore he may have been useful for Shuriki. There’s a high possibility she wed him to increase her claim to the throne to fend off conquerors from other countries. Granted we’re speaking about a tyrant with supernatural powers who has no problems with murdering or enslaving and possibly brainwashing people so the marriage was by no means a happy one.
He had to juggle the whims of a dictator with the needs of the people. And he not only survived living with a fickle, extremely selfish enchantress, he made the land to prosper! So he spent a large chunk of his life as a puppet ruler who actually cared for the kingdom and managed to outsmart/outmanipulate the actual manipulative ruler. He can be mean about Elena’s mistakes but, like others, he’s still in the middle of dealing with his issues. And more over, he may be very well afraid one kooky woman is going to get replaced by another. Elena’s dismissal of some council’s decision don’t make it easy for him to trust her judgment.
Long story short: each member has heavy emotional luggage. Good thing there are Naomi, Gabe, Mateo, Higgins and others to help them.