Commissioners are proposed by their country and discussed with the head of the commission (which was selected by the whole European council) before being validated by the parliamentary committee in charge of its portfolio (composed of MEPs which are elected using direct universal suffrage and proportional representation (you can hardly be more democratic than that).
I understand that you have had issue in the past with the UK pick as commissioner. Sadly the UK uses first past the post election and has a party-chosen prime minister. I would thank you for not projecting the results of the poor democratic system used by your country on the Union in the future.