I'm generally not a fan of big government, but in this instance I'll be voting very much to stay in the EU in the referendum because I think there is a much bigger picture at stake here.
There is a growing level of populism rife in Europe at the moment on both the left and the right, and as is common with populism, the one thing they tend to have in common is that they tend to blame foreign entities for the woes of the people.
Now, in my eyes, a major reason for the EU being created was to stop the kind of conflicts that devastated the continent during the 20th century, and so a political movement that seems designed to stoke such conflict has to be stopped. Britain leaving the EU would only add fuel to that particular fire, and it's one that would have very sad consequences for Europe if it was allowed to grow.
So sure, the EU is probably massively inefficient, but I'm not sure the out group are really looking at how our exit will be looked at by every other nation in Europe and the potential repercussions.