It got me interested, too. A story on how such an asshole was made. Since Tobinaga just might have the same issues with Takaba, only that it made Takaba a better person while the opposite happened to Tobinaga. Amazing, if that was the case, same situation created two completely different characters.
That's what I think as well. We know that what Takaba got out of his childhood experience is to "not want" to lose his rationality to his instincts and act like those Alphas that used and/or violated his father; so, in the case of Tobinaga, he might have resented his Omega father's weakness? or might have been socialized by his Alpha father to shun "weakness" and adopt a sexist viewpoint against Omegas. I wish sensei would consider writing Tobinaga's story to juxtapose both their character development under similar circumstances.
YES! We think the same, specially on how to dissect a character. That story would've been awesome!
Interesting that one of Tobinaga's fathers is an Omega, which could hint at the reason why he resisted pairing with Karasuma even though he was very likely in love with him. I would love to have his character and background expounded as I found him to be very interesting, even though he was depicted as a true asswhole.
http://www.mangago.zone/read-manga/kurui_naku_no_wa_boku_no_ban/mf/bd5c4f37c2bab06c25356dee217e3102_chapter-8/pg-13/