A nuclear power plant does produce deadly products.

Those potentially deadly products can be stored in a safe way. Your link doesn’t even claim that it’s actively killing people. They claim that it’s costly to build geologic repositories, and once they’re built you don’t need more for a long time. Meanwhile coal power plants are directly putting deadly waste into people’s lungs.

Take a look at this bar chart: https://ourworldindata.org/grapher/death-rates-from-energy-production-per-twh

Source: https://pubmed.ncbi.nlm.nih.gov/17876910/