There are plenty of studies on the topic. Those areas are there and already identified. Wind alone would just double to manage the Energiewende by 2050: https://www.naturschutz-energiewende.de/aktuelles/flaechenve...
I don't get your other argument.
If you push for renewables instead of wasting money on over due and over budget nuclear reactors, you can create an industry at home. Create massive amounts of jobs and improve on the technology.
It's already happening and those improvements are way faster than everything we've seen with nuclear in the recent decades.