Earlier quoted context omitted.
How am I supposed to keep the party that I did not vote for (25% did) accountable? Nobody is gonna disrupt the government because of "such small issues".
So - first of all you're admitting that the issue is not the Council of the EU, it's that your own country's representative can't be held accountable for his vote in the Council by you. Political activism is about making these "small issues" big and visible. It's not easy, it's not cheap and it doesn't always work. Yet it's something that can and should be done at the local level. And I really mean: local. Your count…
Second, the issue is the presence of EU influence in my country: Whereas before joining the EU the local parliament would have a nuanced discussion and vote, often with results very different from partisan membership, now the party that won 4 years ago (that does NOT mean >50%) decides all by itself how it's going to vote in the council, and only the biggest issues of all can be helped, but breaking the government for every smaller thing is not feasible.