Both Yucca and processing plants succumbed to the same politics (green), which states that no nuclear power technology is acceptable....only solar and wind power are suitable.
Designing and running a nuclear waste reprocessing plant requires top-notch engineers, managers, and operators, who can easily find more stable (and probably more lucrative) employment elsewhere. Given the instability of the whole process due to politics, those sorts of techies will look elsewhere.
Nevada went for Hillary. I sat stick it to them.
Up until Carter, we actually HAD spent fuel reprocessing plants. The only real problems are the political will, and regaining that technology that was lost two generations ago.
Luckily, the US is about the only country that stopped reprocessing fuel.
The others never stopped.