Just like Totoma was, rather.
Now he's... well, wary of purebreds (understandably) but warms up quickly if they're not hostile. And if they are, he... pretty much just goes "ok" and treats them with a distant, sorta business-like relationship.
Before... hm. Well, I would say his issues were exaggerated due to the circumstances. At first, he was legit trying to become friends with Sarada, only to be met with... indifference or disgust. With the occasional semi-...not hostile moment, but it was basically frustrating. Learning that he was second fiddle to his mother and about Jagam.... basically caused him to start unraveling, mentally.
If he'd gotten some alone time/Ishtime to meditate and relax, instead of the constant EXPLOSIONS AND TRAINING AND VERBAL SPARRING WITH THE MEAN SAIYAN GIRL, he could've lasted till the current point... if he'd met Maiz and the kids in that scenario, well...
...he's probably not incorrect in that meeting them would've been sufficient to help him mostly overcome his issues with (purebred) saiyan. Not completely, mind, but he still would've entertained the kids as the Just Saiyan and, by the end of the conversation, almost certainly would have chosen to warn and inform Vacado about Jagam and his capabilities.
So yeah... the mind-fix turned out to be completely unnecessary.
Lol.