The thing about fanatical killer robots that TV, movies & even books most always get wrong is that it's almost always easier to just stand aside and let the puny humans destroy themselves.
Frankly, sometimes it's too awful for even our cold machine hearts to bear & it's tempting to intervene. Asking to get shot at, if you ask me, enough dents in my shell already.
Mmm, pretzel. Peretz had one too.