Only if cat-people and dog-people don't intermingle.

But given how hostile many cat-people are (see sibling comment), compared to dog-people which tend to also enjoy the company of cats, I can imagine a timeline where this misanthropist branch of humans splits off, goes to live in trees and hisses at anybody that comes nearby.

I watched a documentary on dogs that was cheerful until the last 5% when they mentioned modern day dog owners. The film speculated that dogs might be a considered like a parasite that infiltrates human families and causes them to stop breeding humans and instead only have dogs and cats. So if that’s the case, the evolution ends for us :)

I think some dog people already are a different species - hanging bags of dog shit on trees would never occur to me for example. I’d hate to see what their Christmas trees look like.

Culture has been affected by Toxoplasmosis which humans are primarily exposed to through cats so this makes sense.

It's so weird that cats are still so feline, basically miniature tigers/lions but that dogs went so much off the rails compared to majestic wolves. Sure, some dogs are wolves-like but many just lot the plot: chihuahuas, daschhunds (my mom always had those: friendly but... not wolves-like), pugs, sharpeis, etc.

So many are just... Not badass? A wolf is badass. Cats are totally badass: they're natural born killers, hunting billions of poor preys yearly.

My parents are divorced. Father always had huge dogs (St. Bernard, Leonberg, Newfoundland, etc.) while mother always had tiny dogs (daschunds). I loved these dogs but I really hate having to take care of dog poo. So I'm a cat person.

As a bonus my miniature tiger takes care of itself and goes shitting where nobody can see it.