"Decades" is an extreme POV. Big tech companies are actively investing into nuclear power. Unlike those green renewables you described, nuclear runs almost nonstop. At least 90%+ of the time! Let's not forget about China, who can do it faster and cheaper compared to western standards.
Obviously short term we'll be forced to use gas, renewables, etc. But saying nuclear will be irrelevant is wrong.. Reliable 24/7 clean power without the need for massive amounts of batteries or land is ideal.