Never is a big word. Every time the EU levies fines like this it's effectively the market getting smaller.

Also, there's degrees of exit. Google can exit the market and have zero presence in the EU whilst still sub-licensing tech to affiliates who pay for the privilege and resell their stuff, whilst dealing with all the local regulatory overheads. Plenty of firms use that sort of model.

It's also really not the outcome wanted by regulators. Everyone losing access to their email and information, YouTube, etc would create absolute chaos. Antitrust's job is to rein in profit, not destroy markets.