If you want to make something better you have to aspire to great ideals I'm aware that we aren't there, and that there are different rules for different countries. Like all the countries (mine) included ignored the 3% maximum deficit for decades, no one cared, because all were on board, but after 2008 some countries acted with full force against anyone above it, while they themselves profited long enough from the over boarding debt-policies.
But as i said, you can only aspire to a better ideal. One step is to not be a condescending dick towards other EU nations. Not saying that Poland should get away with it, but we should call out the shitty polish government, and not Poland as a whole, because afaik a lot of people aren't happy with PiS and by insulting Poland you just strengthen the government.
Last but not least, this is not only a job of politicians. This is on every one of us. Not diminishing Poland because of their economy, not demonizing Germany because of their past. Not calling all french cowardly frog eaters, etc. This has to be done by the people of the EU, not only the politicians, because they in essence only say what they perceive their voters want to hear. If their voters wont keep up with polish economy bashing, no politician would do it.