Ok.
The whole essay seems to have been borrowed from
here. The original is little more than nonsense.
That would make them mammals, wouldn't it? "Milking" a spider is forcibly extracting its silk.
The lifespan of spiders, even spiders in captivity, is generally one to three years. Some die of quite natural causes after only a few months.
No living thing can survive a nuclear blast. Surviving the radiation fallout is more possible for spiders than humans, but they (like cockroaches) are not even close to immune.
Do I even need to go into this one?
I seem to remember seeing some pictures of non-grav spiderwebs, but I don't remember when or where.
Possible, but I can't find any Viedant spider in any of the literature.
I'm sure that some spiders and eggs arrive with new clothing, but it's nowhere near 80% and is certainly not the number one source of household spiders.
Virgin spiders... now that's Stephen King levels of creepiness. The widows kill their mates only if the mate screws up the mating ritual.
Maybe sea spiders do this. Sea spiders are not spiders.
No such thing as any of these, as far as I can tell. I think that the facts have been conflated in these cases--social spiders who have a collective (similar to bees or ants) became the "Bajillion Spider", spider silk having a tensile strength similar to steel became the "Copperhead Spider", and so on.