Well, somehow monastic communities in medieval times managed to learn and sing chant.
Perhaps you might be considering a vocation to the professed life. Our Lady of Guadalupe Trappist Abbey certainly would gladly have some new blood. But given the age of the majority of the monks - 75 and older - you may not be impressed with their chanting; they do the best they can, but it is certainly not like 40 years ago. oh, and a hint: they sang chant because that is how they did the Office, with from one to three segments done in the night. The chant rolled over to Mass parts; not the other way around.
Well, in this day, there are many many FREE quality Internet sites that can help parishes use chant. I dare say it would be more expensive to bring in the mixers, amps, microphones etc. that the pop-style “liturgical music” requires.
I am old enough to remember the syrupy hymns we had when I was a kid - back to the early 1950’s, and I can most definitely assure you that the music we have now is far better musically than back then. And if you might bother yourself, you might find that the majority, if not the greater majority of the texts are from Scripture. I do not consider that “pop” music, and I take umbrage with what I perceive to be a very egalitarian remark.
There is the old, old phrase “he who sings, prays twice.”… Gregorian chant is not meant for the people in the pews, as it takes a bit more than watching a YouTube demonstration. I know - I sang in a schola in 1965 when we cut a record (yeah, ancient history) of Gregorian Chant at Mt. Angel Seminary.
If the Council fathers wrote that chant and organ should have pride of place, then why not try to use them? I’m sorry but I disagree with your arguments.
For several reasons, the first being that GC is not meant for the congregation to sing. The second being that even though participation seems low, people in the pews generally do not object to singing by the congregation and modern Christian music is something which can be sung without slaughtering it.
As to organs, there are fewer and fewer people studying organ. The net result is that you can get someone to hack on it, but it is much harder to find someone who can actually play it as it is intended. If organ and/or chant is poorly done, it no longer has pride of place; it has become pedestrian or worse.
It is hard enough to get people to turn out for a choir - no matter what music they are to sing. It is even harder to get people who actually can sing without the aid of a tub with a lid on it, in which to carry their notes. and then there is the matter of a music director and accompanist, and costs, and time commitments, and showing up for almost all the Masses that year in that time slot.
And that does not begin to mention that parishes have their likes and dislikes; you may find that you particularly like GC. and maybe you might find a handful of others; but if the parish does not like it, that dog ain’t gonna to hunt. On the other hand, there may be a parish somewhere near you that might like GC; and if you can actually sing on key, you might want to turn out for their choir, or if they have one, a schola.
The reality is that the Church retains both organ and chant, but it is far more selective than it was, say, in 1962, or 1955. it is available, and generally very very well done, in select locations (such as our archdiocesan cathedral) and in select other parishes. And it is select for the primary reason that most people don’t want that; and the secondary reasons that are enumerated above.
I don’t have a problem with chant. I most definitely am not in favor of chant poorly done (and I will except the monks, having just finished a 4 day retreat at the Abbey). and even at the cathedral, what we often have is plain chant, not Gregorian. As to the Abbey, it is plain chant. In fact, if there is anything particular I miss from my time in the seminary, it is chanting Lauds and Vespers in community. In English.
My suggestion is that you do something - or at least try to do something, rather than going on forums and complaining. You might accomplish more than you expect. Or you may find, as I have noted, that few if any are interested, particularly if it means they have to commit to time and effort with you. In either event, it will have more value to you than sharing electrons of lament with others, and changing nothing.