It is always the court's problem. A judge does not have arbitrary or absolute authority. If Google can convince an appeals court that the judge has imposed an impossible or unreasonable remedy it will be overturned.

So if you make your anticompetitive business a tangled hairball then you're immune from being broken up because it would be "too hard"? Genius strategy.

All monopolies try this old scheme, that's why they became a monopoly in the first place. No reasonable judge will fall for this.