Not irreversible? You are missing the key problem with loss of sovereignty is the European Court of Justice is above the highest UK Court. They interpret and enforce laws in the spirit of the EU treaties. Have a look at the treaties and Five Presidents report to see direction.
The ECJ is not to be muddled with European Court of human Rights (which is an independent entity and not anything to do with EU institutions - same as NATO etc)
the ECJ is ultimately what people refer to re. loss of sovereignty - laws can be made, but it is the interpretation by the ECJ which is our largest problem. Nothing gets past the ECJ that isn't in the spirit of the treaty and they can overrule.
the Council is made up of other country's leaders - so again if you are happy that other countries leaders impact on direction of EU, then vote to stay. Happy that those countries leaders will change regularly and you may not agree with any of their politics.
If you are ultimately happy that a European insitition we didn't elect (Commission) can initiate legislation (that we didn't vote for via an election manifesto of proposals) that are passed to MEPs and Council to shape- then returned to the Commission who (if unhappy with any amendments) issue approval that the vote has to be unanimous, or if Commission is happy with amendments then only 2 /3rds vote required.
Happy that those laws can then be enforced on us by ECJ - then vote to stay.
Being happy with all the above will mean you are happy for EU to tell us we have no say on free movement - despite other trade agreements not requiring this.
That you believe to stay linked to EU with further countries to join and our opinions even more diluted by the sheer numbers of votes from smaller countries -able to form alliances - then vote to stay.
Cameron saying he will give us a referendum on further changes: worth nothing unless there is treaty change - as ECJ can overrule. Blair promised a referendum on free movement - we didn't get it.
We voted for a trading deal. Look where we are now- probably best to vote based on "what they do - not what they say". They will say whatever they think it takes to scare us. Do research how lobbying works for big business to affect shape of EU laws and wonder why Blair thinks him being an overarching president , would make it work smoother.
The ECJ works to enforce treaties. It interprets the laws, and if they feel it is outside of the spirit of the treaty they overrule. It started as a coal and steel trading council and has developed into a political ideology of a European state.
See Boris' wife - human rights lawyer
"As David Anderson QC and Dr Cian Murphy have argued, the Charter — as it now stands — requires ‘enormous faith to be placed in the Court of Justice, its ultimate arbiter’. My current view is that a court which has been known in cases of vital importance to ignore its own rulings (viz, the infamous Digital Rights Ireland case), and give no reasoned explanation for doing so, is acting capriciously rather than judiciously. It does not inspire much faith.
www.telegraph.co.uk/news/newstopics/eureferendum/12150613/Boris-Johnsons-wife-says-David-Camerons-EU-deal-is-not-enough.html