It seems a little misleading to compare costs in this way. Pro-nuclear people generally don’t think we should build more plants with the current cost structure: they think we should reform the current regulatory system (e.g. get rid of ALARA), which would make it much cheaper, and then we should build more. Additionally, they generally oppose closing existing nuclear plants, which are much cheaper to keep running than to build new ones due to the high fixed costs.
It seems a little misleading to compare costs in this way. Pro-nuclear people generally don’t think we should build more plants with the current cost structure: they think we should reform the current regulatory system (e.g. get rid of ALARA), which would make it much cheaper, and then we should build more. Additionally, they generally oppose closing existing nuclear plants, which are much cheaper to keep running than to build new ones due to the high fixed costs.