The sheer number of projects I've completed that I truly would never have been able to even make a dent in is evidence enough for me. I don't think research will convince you. You need to either watch someone do it, or experiment with it yourself. Get your hands dirty on an audacious project with Claude code.
The productivity improvements speak for themselves. Over time, those who can use ai well and those who cannot will be rewarded or penalized by the free market accordingly.