Whether or not they lose revenue by doing this is hard to measure though. They're not just losing the business of the people they ban. They also lose the business of people who consider Google to be unreliable and risky.

In areas where they benefit from their monopoly, such as search advertising, it may not matter much in the short term, because people don't have a choice. But in areas where people do have a choice, such as cloud services or Workspace, it does matter.

It seems like a risky strategy to keep damaging your own brand while relying on monopoly rent to cover up any short term financial impact.