What keeps the evil psychopath from just entering the womens carriage?
Unless there is a conductor at every station to enforce it, this is just the same nonsense with claiming that excluding transgender people from bathrooms to somehow repel assailants.
You realize that it takes money and workers to upkeep, repair, rebuild plants? Staying with nuclear costs money that instead is better invested in renewables. And you realize that maintaining that share against newly build renewables requires new plants right?
You understand that 20% of 100 are 20 and 20% of 200 are 40 right? Like when you look at the charts, you see that the total production capacity doubled, because of the exponential growth of renewables. So it would need new plants to maintain the share.
So unless the plants you demanded were already in planning in 1990, there is no way they would have been there in 2010. Seriously, with how bad at math and physics the proponents of nuclear power are it is all the more important to keep them away from such a dangerous technology.