TM is that one of your Neo-conspiracy studies or just thinking under a shade tree with a six pack?
Blessings
Actually Willaim TM is correct. I leave them alone around my place unless there in a area where they could be accidentally disturbed, and someone stung. Yellow Jackets, Wasps, and I believe even Dirt Dobbers, prey on all spiders, and in Texas, that is a good thing with the Brown Recluse and other spiders.
As far as their nests, I believe it is made of wood fibers and and the females' spit.