Are our Slants "Unsafe"?

Hi, all. I'm new here, but I once worked in auto body design in Detroit, so I thought I'd put my 2 cents in.

This information comes from the 90's, just before they discovered that airbags were causing more injuries and deaths than lives saved, prior to reducing the speed at which an airbag deployed (previously 1/60th of a second). That kind of wallop almost always broke noses, and could kill a baby in a rear facing car seat up front, or even kill a small adult driver. Detroit was forced to put them out before the technology was really ready, by Nader and other advocates accusing the industry of "withholding life-saving technology from the public, in the interest of profits." (And I quote).

This was hogwash, because the airbags were offered as an option by Chrysler in the 70's and no one bought them.

Furthermore, at the time I wrote a paper on this topic in the 90's, it was a scientific fact that "a car that weighed 300 pounds more" than the "then-current" models, on average, was actually safer than a new car with airbags.
However, the government imposed the CAFE standards to improve the average gas mileage over each manufacturer's fleet, and hence, they forced them to produce cars that were lighter, to save gas. This is why air bags became critical. So, an old car, without airbags, is often safer than a comparably-sized new car with airbags.

It is also a fact that an airbag deploys in a fraction of a second, and once the bag is deflated (almost immediately) it offers no further protection. So, without a seat belt, the body becomes a projectile which first travels toward the impact, and then continues to slam back and forth against the interior structures (with almost equal force at first) of the car until the energy is dissipated. This can be several strikes against the hard structures.
Remember, the airbag only protects you from that first strike, so unless you are seat-belted in, you are no longer protected anyway for most of the forces acting on you.

Further, this initial airbag benefit is only really available if you are secured by a lap and shoulder seat belt in the first place. The airbag, even at the safer deployment speeds, is also almost worthless in a rollover situation.

A heavier car, and a seat belt, for me ANYDAY.
IMO the older cars are better in terms of both style AND substance.
BTW what happens to an infant in a car seat when the side bags deploy? I wonder if they still break their little necks like they used to.
Anyone know?