Honeybees are technically an invasive species in North America; they were imported, not native. There are numerous other species, including small native bees, that did the pollination work before honeybees came along. Far as I have heard, populations of these native bees have not been affected by CCD.
Neonicotinoids are relatively expensive (4 years ago, Imidacloprid was $25/pound, about 5x the cost of permethins), and I'd guess despite being about a quarter of the insecticide market, that in ag they are probably not used outside of the fairly limited areas that grow fruits and vegetables -- as those crops have a better profit margin. Yet CCD has been seen very widely, including in areas where there isn't any row-crop agriculture.
Anecdotally, I've used Imidacloprid to control desert stink beetles, and did not observe any issues with my wild honeybees (who frequented the same areas, cuz that's where the water was).
The scare over DDT was manufactured. Silent Spring (which I read, back when it was new) was mostly fiction and has been discredited, yet it influenced a whole generation of environmentalism -- that, not truth, was its point and intent. Some estimates put malaria deaths due to ending use of DDT in the millions. Meanwhile, the connection with condor populations was at best tenuous.