>they're environmentally friendly from the narrow perspective of energy use but they make the lived environment much worse in other ways, particularly the horrid clinical high-K ones people who want to make a 'modern' ambiance love so much.

They are friendly in the same way the feeding a baby petrol is. Sure it's more energy efficient, but humans aren't machines where input = output. It's going to take decades to get rid of all of them, and then even longer for all the cancers that blue light causes to work themselves out. It's amazing that we invented a new asbestos and put a green wash on it.