Yes, there is a huge gap, Chase has anger issues and is a violent asshole, he tried to kill several people in his story and injured one ( I'm not talking about Henry). And that was only in the short time of that story, Chase is known to be violent since he was a teenager. There is a reason why they couldn't find any bodyguards who wanted to work for Chase, it is telling that Mark's firm got the job.
That is also part of Chase's personality.
In that aspect Grayson has a much better personalty than Chase, he only does self defense and is not running around trying to kill people.
What I'm tring to tell you is that not everything is back or white, and you should not ignore the bad sides of the character you like and defend.
He didn't forces him to have sex with a dog. Didn't u read the recent kmiyc chapter? He lied about that cs here in this universe pheromone buildups are too dangerous for a dom alpha. They could permanently melt brain or even cause death. Chase was rigid on not havin sex with anyone so his body was already not very healthy. And Grayson has difficulties differentiating between rights and wrongs and understand emotions and boundaries. But he wanted to save chase from goin insane so he thought if he would lie about him having sex with a dog he would get so scared that he would start using normal method of pheromones extraction. His mind couldn't think wht negative outcomes his words could cause. And in his mind he was genuinely very happy because he was thinking that he is helping his little brother. Grayson literally volunteered to act as a lab rat to develop those medicines that chase has been taking as there has never been an Alpha who would rely on injections for this long. Idc wht KMIYC fans think but knowing all this and lots of other things about Grayson i can never bring myself to hate him. And tbh the emotions and feelings that Grayson made me experience Chase could never.
That's all comes down to what Grayson has been always taught by Ashley. Since Grayson doesn't knw anything like anything, he don't knw wht to say m, he don't knw how to act. So his father made him mimic everything from movies of from wht Ashley himself has been telling him. So Grayson says whatever he has seen someone saying in the similar situation. And Ashley used to tell them that since they are Dom Alphas when the pheromones will took over, they won't see who is in front of them and just jump on anyone even the their omega father and Omega brother. And that's why he never allowed any of his Alpha children to meet the omegas of the house alone. And he always tells them to take care of the pheromones by segs. And mind you all of those were just children at that time. He used to say them that they will rape anyone of they won't extract them. Since chase didn't want to do it with anyone Ashley was disappointed at him. Grayson always wanted his family to be happy and his care for others were very genuine it was very very visible throught the story. So he just used that words that he has been listening to all the time. He doesn't have the ability to understand the severity of those words. And chase was also aware of this fact as when Grayson wanted to apologise to him (when he finally understood wht he said was wrong, all the time he was genuinely happy that he has saved Chase's life), chase himself said that "you still don't have your own words to say". Even when he was apologising to chase he just copied the words that Dane taught him. That itself shows how serious Grayson's condition was.
Well whatever I said was the compilation of the knowledge I gained from all the 6 novels. The incidents are revealed in layers in all the novels. Chase's story, only mentioned the part tht he lied to make chase accept his rut and have pheromones extracted naturally. And later chase said to Josh that Grayson doesn't have emotions and can't understand them and that he only mimics and copy everything. Rest of the information are form other novels, like desire and deflower and lick me up

The shitty miller is here lol
Cheers for Dane ヾ(☆▽☆)