Cybermen and Daleks: One or other by themselves would have been bad enough, but together? Both species consider every other living being inferior, both have their own designs on humanity, one to convert the people of earth into more of their kind, the other to wipe them out completely, and now they’re waging war against each other, winner takes all.
The destruction is horrific, and will only get worse. People are being slaughtered, ripped apart and rebuilt, or exterminated. The death toll is staggering.
The Doctor blames Torchwood’s arrogance and stupidity, but even so they don’t deserve this. Nobody does.