Saying that it has zero to do with Googles mission or business model isn't relevant. Google does plenty of things that has nothing to do with their mission; which I assume is still "to organize the world’s information and make it universally accessible and useful".

Android, self-driving cars, drone delivery, drug research, AppEngine and the whole robots project itself, are all projects that has little or nothing to do with their mission.

If there's money to be made in doing robot weapons for the US government I assure you that Google will at the very least consider it.

You're right, but only by default.

Google forgoes DoD funding once they acquire companies which :

1) have already received DoD funding/grants

2) already have contracts in place with the DoD that must be honored post-acquisition, but are contractually in name with the previous vendor, using Google only as the global representative of the previous existent vendor, while reaping the benefits of a contract.

So, Google surely won't create SkyNet. But 'Cyberdyne Systems : a Google Company' probably will.

Are you personally offended by this idea? Or is it offensive to the corporation of Google?

If either, why? If not, will you expand on how it is offensive, please.