Statistically, you absolutely are. There’s good data to back it up: even when looking at the same vehicle category, the risk of death is smaller in a bigger vehicle.
Which is of course exactly what you’d expect. It’s basic physics after all. And there’s simply more metal between you and the thing that you hit / hits you.
Still, the inverse also applies: driving a larger vehicle is more dangerous for everyone else on the road, so drivers should be extra careful. Everyone wants to get home safe.
Until everyone is also driving the 6,000 lb death machine. Now you need to get the 9,000 lb death machine to compensate and thus the cycle restarts until everyone commutes to work in literal tanks because "it's safer".