“What happened at VC II that made them get rid of these beautiful things?”
Nothing. That’s the problem. Nothing that came out of Vatican II - in its documents - actually denigrated the use of beautiful things. Here’s how John Paul II put it:
11. The Second Vatican Council laid the foundation for a renewed relationship between the Church and culture, with immediate implications for the world of art. This is a relationship offered in friendship, openness and dialogue. In the Pastoral Constitution Gaudium et Spes, the Fathers of the Council stressed “the great importance” of literature and the arts in human life: “They seek to probe the true nature of man, his problems and experiences, as he strives to know and perfect himself and the world, to discover his place in history and the universe, to portray his miseries and joys, his needs and strengths, with a view to a better future”.(18)
On this basis, at the end of the Council the Fathers addressed a greeting and an appeal to artists: “This world—they said—in which we live needs beauty in order not to sink into despair. Beauty, like truth, brings joy to the human heart and is that precious fruit which resists the erosion of time, which unites generations and enables them to be one in admiration!”.(19) In this spirit of profound respect for beauty, the Constitution on the Sacred Liturgy Sacrosanctum Concilium recalled the historic friendliness of the Church towards art and, referring more specifically to sacred art, the “summit” of religious art, did not hesitate to consider artists as having “a noble ministry” when their works reflect in some way the infinite beauty of God and raise people’s minds to him.(20) Thanks also to the help of artists “the knowledge of God can be better revealed and the preaching of the Gospel can become clearer to the human mind”.(21) In this light, it comes as no surprise when Father Marie Dominique Chenu claims that the work of the historian of theology would be incomplete if he failed to give due attention to works of art, both literary and figurative, which are in their own way “not only aesthetic representations, but genuine ‘sources’ of theology”.(22)
http://www.vatican.va/holy_father/john_paul_ii/letters/documents/hf_jp-ii_let_23041999_artists_en.html
It was the “spirit of Vatican II” - which has nothing to do with Vatican II itself - is the problem. And started BEFORE Vatican II.
Without a VC II, there would be no “spirit of Vatican II”.
There was no evil “spirit of Trent” which followed that council.