You hire people. They automate their own job, you lay them off, you pay their salary as tax anyways. Therefore there's no incentive to rush automation to eliminate workforce. As more and more gets automated, people can work on automating what isn't automated yet, or differently automating what is to make it more efficient.

There's no slackening of the incentive to innovate, just the removal of a tendency of innovation to ine itably lead to centralization of capital .

It wouldn't, my suggestion was sarcastic.