Vehicle size is a relevant factor in vehicle-pedestrian collisions regardless of the cause of the collision.
What is there to address? Unless you enforce that people only drink in private homes there will always be pedestrians who've had a few. Walking is probably the safest mode of transportation when you're impaired.
Absolutely true, but what are you proposing? I’d propose banning most vehicles from city centers where people congregate.
Vehicle size and weight will always be a relevant factor as long as people and vehicles exist in the same spaces.
Just as vehicle size and weight will always be a factor, so too will alcohol, drugs, phones, etc.
There’s also the issue that heavier vehicles are inevitable due to EVs. Our bz4x won’t get tagged as a “big evil truck,” but it’s about the same weight as a base model Ford F150. And heavier than a Toyota Tacoma double cab.