(Sorry, somehow the formatting got botched at the end...fixing it for clarity for future readers.)
I see...thank you for that, AND your informative post!
'Some final, random, it's-Monday-and-I'm-not-awake-yet thoughts; I am not posting these to argue with you nor your salient points, just defend my perspective for future readers:
I, perhaps ignorantly, think using plastics should be avoided whenever they can be. I'm not worried about glass getting into my liver.
It's already reached down to 30s degrees F where I live and the furnace will be turned on soon. Bulb efficiencies, be they incandescent or LED, don't matter for half the year here.
I see around me that LEDs do not hold up well in very cold weather--it's common to see them they flicker here until their replacement.
The incandescent bulbs in my car are ~ 30 years old (albeit used infrequently through the day). There are incandescent bulbs still working in the house we bought 40 years ago (albeit used infrequently through the day). I believe at least one of those is 60 years old (of course, things were made more robustly, back when). You've probably heard about the century-old bulb that's still shining--I wonder whether a bunch of low-wattage bulbs like that in one room could last "forever".
I've heard of the circadian rhythm disruption* but am more concerned about the damage to rodent retinas in experiments and the flickering--personally, my eyes don't care for them...I'm suspecting they know something that I don't.
*I watched an interesting YouTube video where engineers examined bulb spectra; I did not know they were so varied. I searched for it just now so I could pass it along, but, alas, YouTube is hiding it from me right now.
This is probably not germane, and rather meta, but incandescent bulbs were 25 - 50 cents when LED lighting appeared on store shelves. How much more pollution is created by people working to make the extra money to buy the LEDs bulbs?!
It would make more sense, fire and all, that Satan invented the incandescent! ;)