Are you refusing to answer the question because you don't want to admit the truth, or because you just don't know the answer?
The members of the European Council are NOT unelected or unaccountable. They really are not. The responsibility for choosing ours lies as much in the hands of our citizens and is just as easy to understand as is choosing our Prime Minister.
And in exactly the same way that the UK chooses who its ministers are (and presumably you are quite happy with that as an exercise in democracy?) the UK therefore chooses who its member of the European Commission is. If it works in exactly the same way that it does domestically, how can you say that it is a deliberately convoluted system of governance that places as little responsibility in the hands of citizens as possible, is as hard to understand as possible, etc? Do you not understand it because you don't want to? Do you not understand it because you CBA? Do you not understand it because you equally do not understand how our government is chosen?
I will ask you again - please tell us exactly how the EU limits the freedom of action of our member of the European Council in choosing who he or she nominates as our member of the European Commission.