We do. The requirement for hugely complex disposal sites is mostly a political one. There's very little long-term hazardous waste that we need to take care of, and we already know how to store it for a very long time.

Only 0.2% of all waste is long term highly radioactive: https://international.andra.fr/sites/international/files/202...

Also, how many nuclear waste death do we have per year? How much do we pay for it's current storage? How does it change the climate? How much nuclear waste is there even? There is no nuclear waste problem. It's FUD.