How can someone with so much technical and historical knowledge of cars screw up and forget there’s a difference between curb weight and gross weight? Letting me down Torch. 

You’re comparing gross weight of the Trailblazer to curb weight on the others. I can’t find a published value on the curb weight for the 2021 Trailblazer. I expect it to be close to 3k pounds, putting the power-to-weight on par with the 2006 Scion XB you compared.