Absolute ridiculous false dilemma. It is not that if the US hadn't chosen to invade Vietnam and to kill everything that moves someone else would have, the US just opted to do that on their own. And it was not like they were there to free the people (from whom anyway, they were not enslaved). There was no vacuum to fill, the same goes for Iraq, Afghanistan, were the US created the vacuum that was afterwards filled by the now crumbling ISIS (though there at least the people were not free before).
And that's the core of the issue, and that is why these political comments are on point (which otherwise would be way too political for HN). By cooperating with the imperial US military Google is directly supporting one of the most evil forces in the world, by supporting the drone program they are directly supporting a program mainly used to kill civilians in the middle east. There is nothing good about this.