Because it is a conflict of interest.
The public has put their trust into Google for 20 years. We supported them. We cheered them on. We have voluntarily given them all our personal data. Our emails. Our instant messages. Our voices. All of it feeds into their massive database for them to mine.
We put our faith into them, in the hopes that they would honor their creed, that they would do no evil.
But gradually, that facade has faded away. Their accumulation of personal data, beyond what is necessary for them to perform their work. And now this. The utilization of their wealth and knowledge, to push forward the state-of-the-art in the weaponization of Artificial Intelligence.
There is nothing that will stop this. The military will find a defense contractor to do their bidding. But Google can voluntarily elect to remove themselves from this sector. Let some other company do it. Let someone else figure it out. The blood of dead innocent civilians will be on their hands. You don't see Raytheon, Boeing, or Northrop crying about it.
By doing the military's bidding, then Google is now far scarier than Microsoft ever was. For those who don't know, when they coined the phrase, Do no evil, they meant it in relation to the Microsoft Borg of the 1980s and 90s. Microsoft now seems like a sheep in comparison to Google.
I think it's time to disconnect Google from our lives. But, it's hopeless. They are everywhere.