That's not enough negative camber to cause a problem (no H in camber!). You probably have a few bushings out- and rebuilding struts won't help you there. If you need a strut rebuild, you need a strut rebuild. Bounce test your suspension to find out.
If your bushings are no good, no alignment is going to help because your car's suspension linkages won't be able to properly control the movement of your tire. Incorrect toe settings are what typically cause the majority of irregular tire wear, so if the bushings are letting the suspension flop around, you're going to have weird tire wear. I suspect either bushings or struts to be your problem.