Makes me wonder how those hair transplant drs actually yank out the whole hair follicle, like what sorcery is that?

It does damage the follicle but the damage is small enough that the hair will still be able to grow back, but if you keep doing it over and over that damage will eventually add up and it will damage it enough that the hair won’t grow back, it takes a long time to do that though, especially because most undesirable hair is thicker and therefore more resilient to that kind of damage.