Yes, I am telling you that. What stops them? How about :- The multilateral complexity of negotiating the removal those pieces that aren't desirable anymore

Yes, I am telling you that. What stops them? How about :- The multilateral complexity of negotiating the removal those pieces that aren't desirable anymore from those that are The massive number of directives that have been issued under the auspices of said treaties that have to be reconsidered The lack of political will The need to recreate the political sentiments active in Europe in the '50s The necessity for every European state to ratify said rewritten treaties in their parliaments We're talking about disentangling tens of thousands of pieces of legislation and policy from the last fifty years, at both national and international level. Honestly, it would be easier to progress to full federalism or just ditch the whole thing, than try to edit the EU and achieve any kind of systemic consistency at the end of it.