There’s still a lot of rules in baseball that the written definition of what is and isn’t rule breaking is left up to the umps judgement. Check swings, turning to second after reaching first, etc. Soccer has a lot less rules and they’re less subjective. Plus MLB umps can just do whatever they want without repercussion.
Baseball definitely the closest, a balk is probably the only call that can’t be made objectively, but it’s such a minor thing anyway.
There’s still a lot of rules in baseball that the written definition of what is and isn’t rule breaking is left up to the umps judgement. Check swings, turning to second after reaching first, etc. Soccer has a lot less rules and they’re less subjective. Plus MLB umps can just do whatever they want without repercussion.