This is pretty much what most people think. Though if smart grids are built and there are huge advancements in battery technology (like way beyond what the Elon hype stuff is), and if our energy demands don't continue to rise at a high rate, then wind and solar can completely solve the problem.

But what you're pointing out is why the IPCC and most climate scientists want nuclear as a stop gap. Because it's better than coal. But then the conversation becomes about nuclear vs renewables, which no one on the nuclear side wants to get rid or even slow the development of renewables.