It's cutting your nose to spite your face. This isn't how business is done. So they would give up tens of billions in revenue per year for a one time comparatively low fine.
If Google packs its bags they'll be the ones feeling most of the pain. And such a drastic move would have consequences on any business Alphabet tries to do in the EU over the next decades.
If anything they're not handing out enough fines. Companies just pay them and keep doing shady business because it's financially more sound to keep abusing the system. Paying the fine is cheaper than correcting their business practices.
