Getting rid of malware is good. A private for-profit company exercising its power over the Internet, not so much. We should have appropriate organizations for this.
Okay. You get right on that. In the meantime, would you rather they did nothing? What do you actually want, in concrete terms?
The proxies is the reason why you get spam in your Google search result, spam in your Play store (by means of fake good reviews), basically spam in anything user generated.
It directly affects Google and you, I don’t see why they should not do this.