The nuclear industry rightly fears excessive standardization because the more units of a given reactor model are built, the more drastically production is reduced by the discovery of a serious bug that leads to their immediate shutdown.

This is one of the major design problems of SMRs (along with the abandonment of economies of scale).

Since you clearly didn't read past the second sentence in my post I'm going to repeat myself. Why doesn't China repeal "excessive" and "neurotic" regulations and build more nuclear instead of solar? Rather than the other way around?

because they sell the solar panels abroad and can't sell nuclear power plants abroad.

That's why they're installing 100x as much solar as nuclear domestically too?

Why can't they sell nuclear plants abroad? Sure Western countries won't buy them but the rest of the world probably would if the price were right.