For example Germany was dependent on Russian gas (before year 2022), which they later swapped for dependency on US LNG. In addition, Germany is dependent on China for PV panels.
There is merit to putting one's energy policy on autopilot by doing the opposite of whatever Berlin is up to.
Similarly, if a country can use 80% less oil or imported fuel than they would have without renewable energy, I think they're pretty self-sufficient. They don't have to be isolated from trade, it's okay to import some things and export others. Energy sources can be one of those things. But if they rely on energy imports, then when something disrupts their supply then they are in trouble. However if they get 80% of their energy from renewable sources, then they have significantly less of a problem.
If you’re 95% self sufficient it will stay at headlines in the local press.
Personally, I don't see an issue with that, as long as the neighboring countries you're importing from are reliable and will be able to supply at the times you need (i.e., they don't have the same possibly spiky import dependency as yourself). The other option is massive storage capacity.
I just don't think it makes sense to just equate renewables with automatic sovereignty.
(And yes, I have solar + battery, and have lost 100% of my outside electricity supply on a half dozen occasions since having it installed, and my actual response has been to not run the clothes dryer.)
Going for the worst possible option, only because the better options are not 100% perfect, is to be considered irrational behaviour.
That's like saying without gas stations good luck getting gasoline to the people. It goes without saying that batteries are an essential part of most renewable solutions.