Earlier quoted context omitted.
The US, or Saudi Arabia, or Venezuela, or Russia could very well be energy independent on fossil fuels alone, even though that won't be wise. Europe, or China, or India could not though.
China is making great strides in renewables and investing in nuclear (and in electrification of transport). It can be energy independent in not too distant future. India has geography for solar, and the human/industrial capability for nuclear. Southern Europe can go solar as well. Northern Europe has it tougher (except Norway, with its abundant hydro). Nuclear could work. Or long range DC cables from South Europe or…
[1] https://en.wikipedia.org/wiki/Spain-Morocco_interconnection