First, NPOV is only violated by you. Why do you say "of course" (as EU brings nothing good) and if you look e.g. to England or Poland, most parties are Anti-EU (which does not mean, they want immediately a withdrawal), and that's "of course". It are simply facts. Most parties in Europe are Anti-EU, but even if not, why would that be a reason not to mention the parties who speculate about withdrawal?? And why would non-winning in elections be a reason not to mention them?? They seek EU Withdrawal or a major reform or opt-outs for their nations. But as you say, you don't want they have weight, because you simply do not tolerate other opinions about the EU and wanna have your LibDem-Pro-EU-Opinion (which is anyway evil) in the article and undermine the parties who want real freedom and independence (though in fact, we Anti-EUists do not have opinions, but knowledge). Second, all that would give WP a very bad name, which you don't wanna, though it has anyway a bad name yet as WP is a non-neutral center-left pro-EUSA propaganda platform. But you may be right with the fact, that the party-lists are already better explained in the article Euroscepticism (while "Euroscepticism" is also rather a pro-EU valuating name, better would be "Eurocriticism" or "Anti-EUism") which would but not be a reason to delete the lists, but to delete this whole article and simply redirect to Euroscepticism and transfer the other information. But I would say, it's better to have two seperate articles and this one with both lists.