The economy is global. If you like independence look at Cuba--it is "independent" for decades now.

Thanks to sanctions, Russia is becoming independent (less/no ties to outside economies)--do not recommend.

Being independent doesn't work, but you should strive to become dependent only on parties that can be expected to be reasonably rational.

A democratic country is expected to be more rational than an autocratic one. The EU was naive in trusting Russia.

Talking with peoples who believe they live in a democracy reminds me of talking with religious people: they think if you don't believe in their god, than it means you are evil immoral person. Rational arguments (facts, evidence) do not work.

In the 70's France went all-in on clean, green nuclear energy when they realized they had an outsized strategic dependency on foreign oil coming from unstable regimes.

America did the same in the 2000's and ramped-up domestic supply of oil.

There are many naive people. Try to look at relative military spending around the world and think about trust, about where all these weapons will be applied eventually.

I mean... germany also spent decades to kill of it's nuclear energy production. So it's not the only thing our (EU) politicians fucked up but will never take the blame for.