"I don't care about 'intent' as much as 'outcome'"
Clearly intent and context matters a lot.
When a cause is systemic it maybe with some natural variance and within what realistically deem acceptable, depending on where we set the bounds. While others maybe special cases and require detailed study to understand.
Blindly setting outcome goals without understanding the system is folly.
"But that's not an argument for doing nothing in response to someone who habitually offends people by accident."
If I say that your posts are constantly offending me, what do you propose we do about that?
There isn't a universally applicable rule here.
This is also where the driving analogy breaks down. It's an easy trade-off to revoke someone's license if it means we can prevent death. But taking action to prevent subjective offense enters into a much more tenuous and debatable cost-benefit trade-off. What makes sense would come down to the details of the case.
On the other hand, if a driver consistently has accidents and people end up dead, it could be that they are a bad driver and shouldn't be in a position to, you know, drive.
The parent comment was short, said "as much as", and yet people downvote it, misinterpret it.
In the case of subjective offense, it should be and usually is different.
If you're called a racial slur by someone who just started learning English and genuinely doesn't know the true meaning of the word, you should take less offense to it than if you were called the slur by someone with obvious malicious intent.
Intent and context matters both in terms of how the "accused" should be viewed as well as how the "victim" should feel.