I read the article to which you linked. It is clear that by “reform” you mean “creating a USER (Union of Socialist European Republics)”. You are correct to point out that this will not happen, together with the reasons — there is no appetite for it among the democratically elected governments of the member states. For me the most puzzling aspect of Brexit has always been the alliance of extreme right wingers who see the EU and its institutions as too left wing, and left wingers like yourself who see them as too right wing. I guess if it offends both extremes it is on a satisfactory path.
As for the 3% rule, have you seen how much better Ireland is doing than the UK as a consequence of that rule? Or how sterling has fallen relative to the Euro, its downward spiral accelerating as the prospect of a “No Deal” (WTO) Brexit increases?