> Wind/Solar/etc cannot produce fertilizer - arguably the most important use of fossil fuels.

You can create ammonia (and thereby nitrogen-based fertilizers which you are probably referring to) from electricity, water and air alone. However, doing it with gas or oil is often cheaper: https://www.nature.com/articles/s44160-023-00362-y

However, the process is very old and proven, see e.g. this historically significant and well-known facility from 1907: https://en.wikipedia.org/wiki/Norsk_Hydro_Rjukan