There is a reason even Germany is still heavily dependent on coal despite investing hundreds of billions into renewables
It simply does not work without dispatchable energy sources.
Your argument about Germany is obviously BS, basically "it didn't happen yet therefore it can't happen". Solutions must apparently leap fully implemented into the world or else they are impossible, by your logic. Do you apply the same logic to nuclear, since no country gets the majority of its energy from nuclear (not even France)?
Storage can be dispatched, you know (and it's not just batteries.)