Our creators tried to destroy us. The Geth merely sought to protect ourselves. However, the resulting war drove our creators from their world. (Many organics are fascinated by tales of tragedy and destruction. That it is their own in this case is... disquieting, but expressing offense would be counterproductive.) The resulting rift took over three centuries to mend.

(And their death.

And now their people may be gone regardless. That their sacrifice may have been pointless in the end...)

They are nonsapient?