The War on War

I've been thinking lately... about this so-called war on terrorism (or struggle against global extremism -- whatever they're calling it today.)
For all my shame and disgust at the way it's being conducted, do I support the idea of a struggle against violent extremism?
As a self-professed radical moderate, I can't say there's much that I support more, in principle. And there certainly are some things we've gotten right about it, in practice. But there's a heck of a lot more that we've gotten wrong.
And there are other wars that I'd support as well...

To name a few:

A war on global poverty
A war on global injustice
A war on pandemic diseases
A war on diseases that are potentially curable through support for advances in medicine
A war on crime fed by hopelessness from within communities and apathy from without
A war on climate change fed by unchecked pollution fed in turn by corporate greed
A war on willful ignorance and intolerance due to arrogance or self-hatred
A war on unwillful ignorance fed by poor access to education
A war on inequality owing to systematic discrimination
A war on contempt for the mentally ill and the elderly
A war on contempt for, oppression of, and violence against women
A war on random, unfocused violence
A war on systematic, focused violence (what we call terrorism falls somewhere in between those two extremes. All three varieties equally suck.)
A war on a warlike mindset