I might be overthinking but Rajiv has so much prejudice.

I have watched all seasons of MasterChef but this celebrity season is more like advertisement and rona dhona. But just for timepass I still continued. In all these episodes I have noticed Rajiv has such prejudice against others. He won't accept or imbibe things he doesn't know from other cultures. Like the whole 'thecha' thing again Nikki and now even Usha Nadkarni. It's okay to not know certain things but acting like an as* and arrogant even when someone is trying to tell you something then just listen with open mind. It's not like others are saint, Nikki and Archana are playing their own big boss, sabotaging things in team challenges. What are they turning their show in? I might just stop watching