[kwekly]

"I live in rural France with narrow roads and it's incredibly stressful to be driving with nearly no margin of error preventing a head on collision."

This is the crux -- I think the author is in fact saying that roads are safer while you are in this stressed state.

"This is like reducing the size of your front door to make it harder for thieves to steal your couch."

The problem is fundamentally different in that the agent on the road at not trying to cause accidents.

[prmph]

Reducing the size of your front door CAN indeed make it harder for thieves to steal your couch. For one thing, it will not stop them from entering, but it can make it difficult enough for them to get the couch out that they select a different target