Thumb through IIHS numbers and you'll see that "bigger is better" doesn't pass a sniff test.
https://www.iihs.org/ratings/driver-death-rates-by-make-and-...
https://www.iihs.org/ratings/driver-death-rates-by-make-and-...
A good road driver just generally positions themselves to not get hit by other cars, regardless of whether or not they're in something pretty nimble or a fat pig boat.