I am sorry to disagree but at every treaty and almost every EU directive,the UK Parliament had a veto. It could at any stage refuse, or demand that it be put to its people. It had that level of control, as indeed had every other of the mixture of republics and kingdoms comprising the EC,EEC,EU.I agree with what you say, except that we were never given a choice in the matter. You could argue that this is up to the politicians to make the judgement but that then gives them the power to implement policies in their interests and not necessarily in the interests of the populace. Was it not stated that if there was any transfer of powers with any treaty then we would get a referendum, in fact I seem to recall Blair saying we would have one and then reneging on it. No doubt under pressure from the EU, and there are other instances of such dodgy dealings. Gordon Brown sneaking in the back door to sign a treaty and then scuttling away springs to mind
It is a bit rich, claiming a democratic deficiency in the EU, when the cause is much more local.