Okay, I've been trying to figure out via Fayde.co if that's possible to drive Kim away after calling him a slur during the infamous failed Authority check in the church and what the worst possible dialogue options are there after that (I literally can't do it in the game, I felt awful doing it so I opted to Fayde).

And man. After the church disaster, after picking the worst dialogue options at the beginning of the talk

after all that shit we still get this:

I tried each one and all of them, literally all of them except the 'Proceed' one, are the options to try and apologise in some way.

Despite your relationship with Kim being a disaster (lower than 1), despite you possibly taking a faschist/racist route, despite anything, you arrive to these options only. To try to make amends. You don't get an option to just tell Kim to go fuck himself, or an option to double down on racist pathway. Only thoughts that spawn in Harry's head at this moment are the ways to fix it.

I dunno what to make of it, really. I just felt really sad after reading this branch of the story and wanted to find something good to take out of it.

Well, actually, no. I think it shows that at his core Harry isn't a bad person. When met with consequenses of his actions - like Kim being genuenly hurt by his words - Harry ultimately opts to the voice of his conscience. It's mostly gamers' choices that push him towards his most dark urges, they are not his go-to options.

Side note: also at some points of these dialogue branches you can make Kim call you a fucking asshole (twice) and it made me chuckle despite the overall awful feeling about this situation.