All the competence in the world won't let you break basic crypto algorithms without at least breaking a sweat.

The playing field between Alice and Bob on the one hand and Eve on the other hand is inherently asymmetrical. Given equal competence and time to work on it, Alice and Bob are going to come up with an encryption scheme that Eve won't be able to break. You seem to be convinced that given almost unlimited resources, Eve can break any scheme Alice and Bob can come up with. I'm not sure I see any evidence for that.