they think the 70s songs are good and holy. Meanwhile we are deprived of the true glory of centuries of great Catholic music (and yes, newly composed high-quality liturgical music), and it displaced by Haugen et al.
This sounds a tad condescending. It sounds to me that you think others have no mental ability to figure out which music is good and holy.
I can perhaps agree a little with you if the people referred to are isolated from society, living in a poor or remote area where they cannot receive television, radio, or internet signals, and they don’t have opportunities to hear free, low-cost, or more expensive concerts by a variety of musicians.
That being said, most people in the U.S. who are interested in music have the opportunity to become educated about music on their own time and on their own dime.
In this day and age, people of all ages have the option of hearing many different styles of music and artists and songs on various media, as well as in real life, and also to discuss the music with others either in real life or online.
There are a few public and private schools, and many home schools, where music literature, history, and appreciation are being taught with expertise. The lucky students who attend these schools have the chops to be able to evaluate church music and arrive at an educated decision about appropriateness.
Also, many Catholics are able to travel, and will attend Mass (hopefully!) at parishes where they may have the opportunity to the “true glory of centuries of great Catholic music”, including the “newly composed high-quality liturgical music.”
So it’s realistic to think that church attendees, including Catholics, have heard the ancient forms of Catholic music and had the chance to listen to Masses that have this kind of music.
And yet, we continue to appreciate and even love our Haugen, Haas, et. al hymns.
We simply cannot dismiss the importance of the “family traditions.” When people grow up with something, they can’t just let it go because someone else tells them it’s “poor quality” or “not reverent enough.” Yes, even if the “someone else” is an old Church document that is possibly not even authoritative. Yes–it’s possible that these documents condemning all music but chant and sacred polyphony have been displaced by newer documents. It happens constantly in the Church over various disciplines–and music is a discipline, not a doctrine or dogma. It CAN be changed by the Church authorities under the Authority of the Lord Jesus.