I don't understand the tax objection. The 28th regime changes corporate law, not fiscal law. A Berlin-based "EU-Inc" still pays full taxes (Körperschaftsteuer, Gewerbesteuer, etc.) to the local Finanzamt. It isn't a disembodied tax haven - it just standardizes the legal wrapper.

You are right that this threatens the status quo, though. If this works, founders based in Germany will likely abandon the GmbH. That will require swallowing some national pride and admitting that the current system is simply a less efficient, less competitive legal form for high-growth companies.

One thing I think is also worth mentioning are labor rights. I am not arguing against the German model of employee protection. Mitbestimmung could be viewed as a good thing, even if it will mean less power to the VC and / or founders. And frankly, I don't care if the consensus forces strict, German-style Mitbestimmung on the EU-Inc. Stricter form of EU-INC is still vastly better than nothing at all.

Asianometry has a great video on the labor rights in germany btw - https://www.youtube.com/watch?v=K0teMtLT9XI).