I will say it then. The 40 and 45 are both underpowered and, especially in the case of the 45, highly overrated.
I can't tell if you're being sarcastic or not...
If not, then from this, I can assume you'd say the 9mm is underpowered as well. 44 Mag is a lot of gun to carry around for almost everyone, and most people would say a Desert Eagle is overrated. If you're trying to make the point that you'd take a long gun over a handgun in a gunfight, well, I'd agree with you there, but I have trouble concealing my Wincester Model 70, my Mossberg 500, and AR.
I'd say that years of ballistics testing and real world street performance would say you're wrong.
Please tell us what you'd recommend, and give me your ballistics testing and real world street performance data, so we can compare it to the two (or three) most popular calibers you think aren't powerful enough.