Sorry, but that's utter nonsense. If in the future the EU makes a decision that Britain really can't live with, we could just leave. Voting to remain in the EU doesn't mean we have to stay in the EU until the heat death of the universe, it just means we'd like to *currently* stay in.
I've yet to hear a single compelling reason for voting to leave.
I don't understand what is nonsense? he wants an accountable/ elected Government. Something that we don't have entirely with membership to the EU.
They have made decisions that a lot of people don't agree with. Hence we are trying to re-negotiate now, and having a referendum. As we are seeing now, you can't just "Leave". There is a whole process behind it.
As for compelling reasons, I don't know what you find compelling to you but;
Save on the outrageous membership fee. I believe we are net contributors to the EU (put in more than we get out ). Also we will not be dragged into subsidising the Euro area or standing behind failing banks in the Eurozone.
We will be able to set our own levels of VAT, and avoid any new taxes we do not want.
UK will be able to decide how much regulation to impose on business trading in the UK or the rest of the world outside the EU.
UK will be able to accelerate free trade agreements with the USA, China, India and the other important growing markets of the world.
We can decide our own criminal justice policy, and who to deport.
We can decide our own foreign policy, and not get sucked into the EU’s conflicts with others.
Like I said earlier, I think we can get back to being a fairer democracy.