Renewables aren't consistent enough alone, so they need a big consistent buddy to help them out. It could be coal or gas, but we'd much rather have nuclear.

They're not mutually exclusive. A society serious about eliminating fossil fuel use needs both.

The nuclear we built in the 50s is. The technology has come a long way since then, we just haven't built any.

Nuclear is the past, present, and future (whenever we figure out fusion)