Too late is much better than "cannot work at all" which is what solar and wind give us. What makes you think solar and wind are up to the task right now? They cannot possibly power our collective needs, and even if they could, we have nowhere to store the energy at night or on cloudy/calm days.

Energy storage is not a solved problem, and it will not be a solved problem for the next decade. In the meantime, we need to build nuclear reactors now.