(A) day when (the) articles vanish from English would be (a) big joy for (the) Poles, at least for me.
English would disintegrate without articles.
There is so much homophony in English that articles are needed for native speakers to parse sentences. I once had to read a five or six page article with almost no articles and it was almost impossible, real agony.
I always way, when in doubt use an article, the wrong article (or an article when none is needed) is easier for native speakers to deal with in writing or speech than the lack of an article when one is needed.