Quite the contrary; the State by lobbying, subsidies and "international aids" is actually benefiting the giant businesses, as the coercion made by the State harms the SME's and we the common people to trade with other countries.

Basically, I'm describing corporatocracy (the State is dominated by corporate business interests).

Do you know, that even with the sanctions, russia exports and imports (almost) as usual, because internationally nobody cares? And if sb cares, they will make a daughtercompany in no time which does the trade?

By "russia exports and imports" (fallacious use of collective nouns), I'll interpret it as businesses affected by the sanctions.

As I said before: "Descriptive economics is not the same as explanatory economics". You can't just infere those sanctions are not working from having analyzed statistics and economic history. You need first an economic theory that tries to explain how the economy works by identifying the causal relationships between economic actions and events.

I'd recommend you to read about Mises's Human Action (praxeology based on methodological individualism).