"So far, nobody has found a way to fund such a platform" What ever happened to Project Quaero funded by the French and German government?

Quaero is dead. I don't know why it died, probably quarrels among the companies and governments involved.

The problem with a European Google is that European (copyright) law would apply to it, making it difficult to implement things like the cache, the news aggregator, the translator, and perhaps search itself (because indexing will soon be recognized as a new exploitation right, requiring permission from the copyright holder).