Nuclear has been a running sore in Swedish politics since the late 70s. Opposition to it represented the reaction to the classic employer-employee class detente in place since the 1930s where both the dominant Social Democrats and the opposition on the right were broadly in agreement that economic growth == good, and nuclear was a part of that. There was a referendum in the early 80s where the alternatives were classical Swedish: Yes, No, and "No, but we wait a few years".
Decades have passed, and now being pro-nuclear is very right-coded, and while secretly the current Social Democrats are probably happy that we're supposed to get more electrical power, there's political hay to make opposing the racist shitheads. Add to that that financing this shit actually would mean more expensive electricity I doubt it will remain popular.
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