What President do you mean Stanron? The President of the European Council and the President of the European Commission are both elected by the European Council which comprises the Heads of State of the Member States. They are elected for fixed terms. Both are accountable to the European Parliament. The Presidency of the Council of the European Union is held by one of the member states, in rotation. In contrast, I have never been able to vote for the Prime Minister of the United Kingdom, the Head of the Civil Service, or the Queen. And the last one of those is in office for life. The EU is far more democratic than the UK.

I think that you are confused as to what a President is. It is someone who presides at meetings. When you confuse a presidency with an executive authority, you get a system which really doesn't work very well, as we see in various countries around the world.