This argument is a canard. You are requiring that a specific case of a nuclear plant being retired be tied to a specific case of sustainable energy being constructed, which is obviously not how the energy production marketplace works.

For example, the Humboldt nuclear station in California, 64 MW, was shut down in 1976. The Techapi Pass wind farm, 710 MW, was started up in the early 1980s. So the sequence is correct to say that the nuclear resource was replaced by a sustainable resource.

However, obviously it is not a one-for-one replacement, the process for planning and deploying electrical power is inter-related with a whole range of factors like planned or unplanned shutdowns of certain sources, changing regulatory environment, demand growth rate, cost of supplies, interest rates, etc. It's never going to be a case of "we are shutting down this one system and replacing it with this other system," because none of the activities live in an isolated system.

Therefore, your question is nothing but provocation.