Google can't do anything about it either - consumers will prefer the chat approach and will go where it is offered. Google has to offer it, or people will go to ChatGpt and Bing, but at the same time they lose a lot of money each time people opt for the chat summary.
It is way expensive for Bing too, but they don't care because their market is growing and since the only thing people used to search Bing for was how to download Chrome and how to change the default browser, they aren't losing a lot this way.