Errr, you realise that this stuff was said by the President of the EU Commission, right? In his State of the Union address? This is not conjecture or alarmism, this is the direction of travel desired at the highest level of the EU. Will all of it happen? Probably not. Will some of it happen? Yes, absolutely. Could we ever rejoin the EU if any of it happened? No, absolutely not.
Despite the fact that you never stop going on about how undemocratic the EU is, it is a democratic body even if it isn't as democratic (for good reasons) as some would like it to be. The President of the EU Commission can think whatever he likes, unless Merkel et al (and that et al would include the British Prime Minister if we were staying in the EU) agree to it, it isn't going to happen.
We have no idea where the EU is really going over the next 5-10 years, there are simply too many variables and too many unknowns. To attempt to predict the direction and then use that prediction as a basis for the argument that Leave was correct is no different than someone assuming that the British economy will go in the toilet post Brexit and therefore criticizing the result of the referendum.
Both are intellectually disingenuous.
Well the advent of Qualified Majority Voting put paid to any idea that the Council of Ministers exerts ultimate control over the Commission, I'm afraid. And, of course, the veto is a weapon used more in threat than reality, so it's something of a paper tiger. Equally, since the Commission is the only body capable of proposing legislation, they do have rather a lot of influence over the direction of travel. It is therefore highly disingenuous to pretend that the mission statement of the ideologically-driven body that controls the legislative direction of the EU is anything but highly significant.
But as I say - and this is where the real disingenuousness is at play - this is not news. The EU have their mission of a borderless, centrally-controlled, united European superstate literally written on the walls of their buildings in Strasbourg and Brussels. To pretend the EU was ever anything else or ever had any other intention was the single greatest lie the British political class has ever perpetrated.
Whether it's a bad thing or not is in one sense neither here nor there. It is definitively not, however, what Britain's electorate were sold back in 1973/5, it is plainly not what they want and is what they have been repeatedly reassured that the EEC/EC/EU was not for the last 40 years by lying politicians. We have always sort of bumbled along under the assumption that the EU was primarily a trading bloc, missing the fact that it is an ideological institution with a clearly-defined and - to British minds at least - highly unwelcome end point.
Thankfully, the likes of Juncker woke us up to the truth and we bailed.