It’s not a particular love of the EU, it’s an acceptance of the realities of the modern World.
Given the choice, I would love it if Britain had an economy the same size of America or China. But we don’t have the land mass, population or access to raw materials to make that possible.
The Countries of Europe, including Britain, made their fortunes from using the populations and raw materials from their colonies.
Without the creation of a trading bloc strong enough to put meaning taffies on countries that could undercut our way of life, the money of the European nations would simply seep away to China and the emerging economies around the World.
The biggest Brexit problem for me is Britain hasn’t looked into an alternative solution to mitigating this very problem.