It's simply false that wasting disease "requires wolves" to propagate. This has been known and studied for many years [0][1]. It's been a large problem here in Colorado for decades despite no wolf population (up until the last few months).
If you would like to learn more, I'd encourage you to read Colorado Parks & Wildlife's management report [2] which includes a lot of good sources and background about its history, epidemiology, and current mitigation plans.