Fine. Let's assume that Agile is worse than the alternative. I am willing to accept that. However, which process are you arguing for, in its stead? "Programming, Motherfucker?" Shapeup? (Shapeup gets pretty close to agile in spirit.) Spiral Model? (I am assuming you're not arguing for RUP or others.)
Conceptually, I like shapeup. I think spiral model is fine - I'd argue that a lot of "agile" shops are closer to spiral.
Now, there are tools in agile that I'll vehemently defend, such as continuous integration and retrospectives. I'm a fan of most of the principles, such as "Continuous attention to technical excellence and good design enhances agility." But we are now at a point that if we're going to argue that "agile doesn't work," we've had enough time as an industry to gather around an alternative.