When "Ma & Pa Kettle" upgrade their cheap fares, they're paying a co-pay, and so their contributing $ to UA. If you got your way here, you would be upgrading your cheap fares without co-pay, and thus contributing nothing to UA. The new system, as designed, makes sense to me, and I expect your "campaign" will fall on deaf ears.
Or are you saying you're willing to pay a co-pay with your SWU? That would be an appropriate charge, and then I would agree that SWU's should be good on all fares. But baring that, I don't see this going anywhere.