Haaa but don't you know that they have already taken over the world!
Just look at the panic and overreactions they cause to humans- Spiders RULE the world!
(Until the humans kill the poor innocent things with their poison sprays...)
I mean how would you feel if your just chilling out, hanging around waiting for your dinner to fly past then suddenly you've got screaming humans freaking out in front of you and you don't even now what you've done to deserve being chased then murdered like that...