They operate on the principle that without revenue the people doing the actual work of journalism will go out of business.
Do you think the regulators are wrong on that point?
Seems completely different to me.
We already know the answer from other countries where Google was forced to share ad revenue or not index the papers.
Also, news sites have control over how their site shows up on Google. If they want to continue being indexed and show up in the search result with just a title and no snippet of the page, that's something they could make happen immediately just by themselves. That none of them are choosing to do so makes it pretty clear that the "people just read the summaries and don't click through to the article" thing isn't a problem in reality.
> we need to find a balance which pays for good journalism if we want healthy societies
Sure. Why do you think that it's search engines and social networks that should be doing the paying?
There is a lot going on right now, with Google + Meta at the centre of possible regulation over news links; with the wars in Israel and Ukraine causing spikes in misinformation; with American trust in news at historic lows, and with X's disbanding of its Trust&Safety team leading to a rise in misinformation on the platform; any withdrawal from a service as prominent as Google's News is going to be noteworthy.