There are two
flaws in your logic. First, if your adminship bit is
removed, how do you "unblock" yourself? So no, you don't need an extra
"super-admin" level to do de-sysoppings, you can just allow admins to do
it. Second, your argument would equally apply to page deletion (you can
publish any crap because if anyone deletes it you can just undelete
it!), and yet admins can all delete *and* undelete and it still works
(because they largely follow a certain policy).
So not only do you want to make everyone admins, you want to make
everyone stewards? If anyone can desysop anyone else, then all it
takes is one bot to remove everyone's sysop bits, and we have to wait
for a dev, or steward, or whatever rank is high enough to avoid the
bot's grasp, to revert it (which could be made quite easy, but it
could be a significant wait until someone is available to do it). The
cleanup of the damage the bot has done in this time (or, probably
multiple bots to make it harder to undo) couldn't start until this dev
had been found.
Whatever way you look at it, you're going to need a significant number
of people with greater powers than everyone else, it's unavoidable.
See, this last conclusion of yours is a fallacy. All you (strictly) need
to prevent this (very hypothetical) scenario you described is either
enough admins so that there's always someone around to stop such a bot
quickly enough, or a cap on the maximum number of blocks (i.e.
desysoppings) that any one user can do in a fixed amount of time (let's
say, one per hour).
Timwi