We've seen a total of 5 members of an entire race of people... That's like walking into a new work place, meeting one bully of a coworker off rip and concluding that everyone else is likely rude as well, highkey ignorant
. MRK assumption.
Also, Kaguya never displayed any arrogance in her fight with Team 7, she went out of her way to fight cautiously and carefully, attempting to split them up despite being stronger.
Kinshiki didn't display much arrogance either, except maybe a few qwips here and there when provoked by Sasuke iirc. Most of the time he was just a quiet servant dude.
Hell, neither was Isshiki. Homeboy deliberately tried to seal away Naruto and respected the capability of Sasuke's eye prowess despite being able to no diff the dude physically. He displayed pompous confidence against Koji, but there is a difference between arrogance and high confidence in one's abilities. Isshiki clearly knew he had a massive superiority in combat ability over Koji, and didn't stop pursuing him out of arrogance, but because he had little time to waste. Also, he respected the power of Amado's cyborgs so much that he had their power sealed cuz he recognized they could threaten him.
Momo had that royal arrogance of a spoiled rich kid and Birdshiki had the arrogance of generic poorly written filler bad guy
cuz that's what he ended up being. So that's 2/5. The other 2/5 (Isshiki and Kinshiki) were very dutiful and loyal to the tasks they were given (consume chakra fruits and evolve, work as a servant and guard for Momo). The last 1/5 (Kaguya) rebelled against her given task and acted out of fear of punishment.
The longer I think about your statement, the less sense it makes.