To say Bakugo and Deku canonically hate each other is a very wild thing to claim. I understand just not liking them as a pairing but Horikoshi has shown that the two of them do care about each other in the series
Bakudeku correct quotes part four; Gays? In our hero academia? Most likely.
Katsuki: Just a minute. I need to go take out the trash.
Izuku: Oh. We're going out?
Katsuki: Wh…
Katsuki: What do you want to be for Halloween?
Izuku: Yours.
Katsuki:...
Katsuki: …yeah, that would be pretty scary.
Izuku: Hey, random question, what are your favorite flowers?
Katsuki: Peonies, why?
Izuku:...
Katsuki: Were you going to get me flowers?
Izuku:...
Katsuki:
Izuku: ᶦᵗ’ˢ ᵃ ᵖᵒˢˢᶦᵇᶦˡᶦᵗʸ
Katsuki: You got a date yet Izuku?
Izuku: No…
Katsuki: Well you do now! Get your ass up and hold my hand!
Izuku: I’m in love with you.
Katsuki: We called off the prank war last night at midnight, dork.
Izuku: I know.
Katsuki: Ah. Okay. Um. Cool. Neat. Very cool. Cool. Cool. Coolcoolcool-
Izuku: I don't need to go to bed. I'm not tired, I'll be fine.
Katsuki: But, darling, I'll be so lonely without you. Come curl up in my arms so I can feel whole again.
Izuku: O-oh. Well. Are you trying to seduce me into healthy sleeping patterns??
Katsuki: Is it working?