Business is what is stopping Google from not servicing Europe. Google makes huge part of its profit on search in Europe and pays almost no tax in Europe.
If Google stopped servicing Europe, one or more European competitors would emerge in days or weeks and Google's dominance would be threatened worldwide within months. It would be a completely suicidal move.
What are you taking about? Any Google Search competitor needs to be seriously better than google in order to stand a chance, ‘not 100% there’ is equivalent to not there at all.
Moreover Qwant is just bing search results repackaged.
If Google stopped servicing Europe, one or more European competitors would emerge in days or weeks and Google's dominance would be threatened worldwide within months. It would be a completely suicidal move.