> If you don't like the laws/rules then just leave Germany

Or change something. But yeah, I agree that leaving a country that you don't like is a good solution. I did that myself.

> There is no justification for tax evasion

The basics of philosophy behind taxation state exactly the opposite: it is an obligation of a business to evade as much tax as possible - as long as it is legal.

It is how Russia become what it is: we all be said «If you don't like new law/regulation, go to your beloved USA, you are not a patriot and must be punished».

I'm sorry, but Germany is democratic country, and citizen of the country can choose by definition.

Leave your motherland because your government is crazy in one way or another? It is nonsense.

In reality, sometimes people need to do it (because it becomes too dangerous to stay), but it should not be this way. In any country.