Is there no mechanism by which he can be removed before he does any more damage?
No, but hopefully he'll be slapped down by the cardinals so hard his teeth will fall out when they do a "formal papal correction" in January.
Papa, why hast thou forsaken us?
GRRR!
There are several mechanisms but they would place users in a state of mortal sin.
In a sense, no. I.e., there is no process in Canon Law for the removal of a Pope.
There are, however, procedures that canonists and theologians have pondered, based on the principles that 1) that no one can judge a Pope (and therefore, no one can remove a Pope), but 2) a heretic cannot be Pope.
Thus, a group of Cardinals can declare publicly that Bergoglio has become a heretic, and is no longer Pope.
Bergoglio COULD insist that he is Pope until the day he dies, but there is at least the possibility that he would resign.