Nuclear waste is process and reactor specific. These are engineering problems and are several magnitudes of order smaller problems to deal with that dealing with carbon waste.
Sure, there are better reactor designs and processing methods but they aren't available yet. We should never exclude fission power completely, just that it isn't a good option right now. If research is inhibited by not using bad and costly technologies, we need other sources of funding. That is an issue that could very well need solving.