Bald Eagle: No one has yet come up with any arguments for enlarging the EU

You must mean here, in this thread, for that's the only way this sentence can make sense. Outside of this thread the arguments are easy to find if you want. You may not like them or may not share them, but that's something else.

Some of the arguments are:
- less migration
- more political stability
- more competitive power on the world market
- net economic benefit to all members to due to internal growth
- more economic and political weight due to being the largest market then

I can see that someone in far off Britain may think different, but for Germany it'll be an advantage, on the balance of the positive and negative, to enlarge the EU: A big new market at our front (or back, when you look from the other side) door with people that can pay for our goods (they can't really now), less pressure to emigrate for some of our our immediate neighbours, less bad blood among German workers by eliminating the biggest reason for extremely cheap labour (you can't concur with offers to work for less than a pound an hour which people crossing the border daily with extremely low costs of living at home can make).

Wolfgang