Not true. 2 modern, big cars crashing into each other at typical urban speeds usually mean no serious injuries. But try crashing 2 LSV at 50 Km/h and see what happens.
Also cars don’t only hit other cars.
This may be wasteful, but it's safer. So it's not a net loss.
> Also cars don’t only hit other cars.
They also hit people and big cars can cater for this more efficiently (see crash tests for big Volvos for example), as well as hard walls and trees, where the answer is quite obvious.
... and electric bicycles.
You’re missing the point again. Safer than what? If everyone drove low-speed light vehicles, we would be safer too.
We’re in a “safety” arms race, where you’re only safe if you’re in the largest size vehicle possible. Buy an escalade and you are “safe”. Buy a Yaris and you’re risking your life for better gas milage and cheaper car payments.
And then the additional mass is making it more dangerous, not less.
Another example, have you noticed how headlights have gotten noticeably (blindingly?) bright in recent years?