Completely wrong. Renewables plus battery storage and long-distance transmission lines can potentially solve the power generation problem, although we're decades away from being able to scale that up in a way that addresses base load requirements for heavy industry in an economical way. But beyond power generation, natural gas is a crucial feedstock for the chemicals industry. Renewables won't solve that and the German chemical manufacturing industry is dying.
https://www.reuters.com/sustainability/boards-policy-regulat...
Many people only look at "electricity" generation when they think about renewables, but fail to recognize that that is only part of energy consumption (and a surprisingly small one at that). Globally electricity production only accounts for ~21% of energy usage, so even if we had an entirely green grid across the entire planet we still would have a long way to go as far as having sustainable energy usage.